Resistors Question & Answers September 20, 2021 By Wat Electrical Leave a Comment This article lists 100+ Resistors MCQs for engineering students. All the Resistor's Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on Resistors. Resistors are passive electronic and electrical components that provide electrical resistance within a circuit like a circuit element. These components include two terminals which are used to divide the voltage, decrease the flow of current & regulate the level of signal level. The resistor works on the principle of Ohms law. This law defines that the voltage in the circuit is directly proportional to resistance & the current supplies within a circuit. The unit of the resistor is ohm denoted with ‘Ω’. There are different types of resistors available in the market where the working principle is the same for all the resistors but the main difference is their voltage, current, power, and the material type used to make. Resistors are available from micro ohm (µΩ) to mega (MΩ). 1). Which of the following statement specifies Ohms Law? V = I/R R = VI V = I*R I = V/R Hint 2). The unit of voltage is...? Watt Coulomb Ampere Volt Hint 3). The unit of current is...? Ampere Volt Coulomb Watt Hint 4). The unit of power is...? Coulomb Ampere Volt Watt Hint 5). The unit of resistance is...? Watt Ohms Ampere Volt Hint 6). The Ohm’s law obeys components are known as: Ohmic components Non-ohmic components Resistors None of these Hint 7). Which of the following V-I curve is belongs to Ohmic components Straight line V-I curve Non-linear V-I curve Parabolic VI curve Sinusoidal VI curve Hint 8). Many resistors in a circuit, the resistance is... Resistance is low Resistance is high Resistance is same Resistance may change Hint 9). Resistors that contain set resistance is known as Variable resistors Thermistors Fixed resistors Fixators Hint 10). The silver stripe tolerance is ± 5% ± 10% +5% + 10% Hint 11). Which of this can have positive otherwise negative charge Hole Iron Neutron Electron Hint 12). Electric current has an only lane throughout circuit in Combination of Random Combination of Series Combination of Parallel Combination of Circular Hint 13). The flow of electric current in a circuit is because of the following. Ions Atoms Electrons Charged particles Hint 14). The copper resistivity is 12.9 omega.gif 10.7 omega.gif 16.6 omega.gif 19.0 omega.gif Hint 15). How do fixed resistors generally not pass? Gradually over time By raising their value By becoming an open circuit By rising their value & becoming an open circuit Hint 16). By Ohm's law, if voltage raises & resistance resides the same: Current increases Current residue the similar Decreases Power Decreases Resistance Hint 17). Which of the following formula illustrates a straight proportionality among power & voltage? P = VI V = IR I = V/R P = IR Hint 18). Which of the following type resistor is found within SIPs & DIPs? Thick film Wire wound Metal oxide Metal film Hint 19). Which of the following two main categories of resistor? Permanent & changeable Low ohmic as well as high ohmic value Commercial as well as Industrial Low power and high power value Hint 20). How many of the potentiometer can have the following connections? 1 3 5 7 Hint 21). The Power can be defined as Energy The charge at which energy is utilized Watts The charge at which energy is produced Hint 22). Which of the following conductor is most frequent in electronics? Aluminum Gold Silver Copper Hint 23). By using Ohm's law, the resistance is not changing means that voltage as well as current is Directly proportional The same Not capable to generate energy Inversely proportional Hint 24). Which of the following ohmic value resistor has a color code of orange, orange, orange? 26 kilohms 33000 ohms 2200 ohms 33 kilohms Hint 25). The power can be calculated in units of...? Joules * charge Joules per work Joules per time Joules * voltage Hint Resistors Question & Answers for Interview 26). Which of the following step is most important while calculating resistors? Utilize the maximum potential scale Keep test terminals short keep the meter reading zero before using Take away power from the circuit Hint 27). Which of the following component can be designed for opposing the flow of current is named as? Insulators Resistors Conductors Heat exchangers Hint 28). What kind of resistors have a 5% of tolerance rating otherwise better? General-purpose SIP Precision Wire wound Hint 29). The tolerance of Resistor can be either printed on top of the component, otherwise can be provided by Keyed containers Color code Size Ohmmeter reading Hint 30). When the load resistance rises, then what will be the load current? Vary Decrease Increase Remain Constant Hint 31). Which of the following test apparatus is used for calculating resistance? Voltmeter Ammeter Ohmmeter Wattmeter Hint 32). Whenever resistance reduces then what will be the current? Increase Remain the same Decrease Double Hint 33). Which of the following property will have a good fuse A medium resistance An infinite resistance Zero ohms resistance A high resistance Hint 34). Which of the following property will have the wire wound resistor Low power High power High current Negative temperature coefficients Hint 35). How the power dissipation can be done in a resistor? By Resistance By heat By current By voltage Hint 36). If more resistors are connected in a circuit then what will be the resistance? Less Vary Constant High Hint 37). A component in an electric circuit used to restrict the flow of current is known as Transistor Integrated circuit MOSFET Resistor Hint 38). The power of resistor can be determined through…….? Physical size Color code Resistance None of the above Hint 39). Which of the following are resistor characteristics Current & power Current & voltage Resistance & current Resistance & power Hint 40). The maximum available value of a resistor is Kilo Ohm Mega Ohm Gega Ohm Tera Ohm Hint 41). Which of the following resistor is most commonly used? Film type Wire wound Carbon type Fusible Hint 42). Wire wound type resistor works at high frequency like…? Diode Capacitor Transistor Inductor Hint 43). Carbon composition resistor is mostly used because of…? High inductance Small in size Inexpensive Less weight Hint 44). Which of the following equation is correct for resistors in parallel connection? R= R1xR2XR3X…XRn R= R1+R2+R3+…+Rn 1/R= 1/R1+1/R2+1/R3+…+1/Rn 1/R= R1+R2+R3+…+Rn Hint 45). In series connection of resistors, the amount of current across every resistor is... Different Similar Changes based on resistance value Stable Hint 46). Which of the following factor is used to determine the resistance of a material Resistance Inductance Temperature Type of supply Hint 47). The conductor’s resistance is proportional to….? Length Current Area Temperature Hint 48). When the VDR or varistor simply conducts? Current supply within the circuits increases a fixed value When current supply decreases in the circuit When voltage supply increases a fixed limit When power rating increases Hint 49). The wire’s resistivity mainly depends on the…? Material of wire Area Length Temperature Hint 50). Which of the following range is suitable for carbon resistor? 1 to 35 Ω 1 to 30 KΩ 1 to 22 MΩ 1 to 10 µΩ Hint MCQs on Resistors for Exams 51). SMD resistors are mainly used because of….. Small in size Rugged Affordable None of these Hint 52). Which of the following tolerance is used for carbon resistor? 5% 10% 15% 30% Hint 53). Which of the following material is used to made cerment resistor? Liquid alloy Chemical alloy Metal alloy None of the above Hint 54). Which of the following resistor is used in DIPS & SIPs? Thick film Carbon film Wirewound Variable Hint 55). Which of the following resistor is varistor? SDR PDR BDR VDR Hint 56). What is the function of a photo resistor/LDR? Detects light Detects current Detects temperature Detects moisture Hint 57). Which of the following resistor have good stability? Carbon film resistor Variable resistor Light dependent resistor Carbon resistor Hint 58). Which of the following resistor changes its value when applied voltage varies? Variable resistor Wire wound resistor Metal oxide resistor Fixed resistor Hint 59). Which of the following statement is true for a resistor? It dissipates power It dissipates current it dissipates voltage It dissipates resistance Hint 60). Which of the following conductor is most frequently used? Copper Steel Bronze Iron Hint 61). A thermistor is a…? Resistor Switch Capacitor Diode Hint 62). When two 10 ohm resistors are connected in parallel connection then what will be the resistance value? 20 5 15 25 Hint 63). Which of the following instrument has less resistance? Ammeter Voltmeter Clamp mater Multimeter Hint 64). Which of the following statement is not appropriate to Ohm's law? AC circuits Resistors Capacitors Semiconductors Hint 65). The type of resistor like thermistor was invented by Samuel Ruben Ruben George Samuel Loughead George ruben Hint 66). Resistors are broadly available in… types? 3 3 5 6 Hint 67). Which of the following resistor is the example of fixed type resistor? Carbon film Metal strip Varistor Metal oxide Hint 68). If a wire’s resistance is Xohms and it is stretched to double to its length then what will be the resistance? 2X 2/X 6X X/4 Hint 69). Which of the following units is used to express conductance? Mho/m Mho M/ohm Ohm/m Hint 70). Resistor color code can be measured through…? Colored bands on resistor Its construction Based on its terminals Based on Weight Hint 71). Which of the following is the main drawback of carbon composition resistor? Extremely sensitive to temperature Huge weight Not strong Not widely used Hint Please refer to this link to know more about Carbon Composition Resistor 72). What is the resistance value range of carbon composition resistor? 1 Ω to 22 Mega Ω 1 Ω to 100 Mega Ω 1 Ω to 10 Giga Ω 1 Ω to 22 Kilo Ω Hint 73). Which of the following resistor is known as thermal resistor? Thermistor Carbon composition LDR Varistor Hint 74). Which of the following material is used to cover the wounded wire within wire wound resistor? Copper Baked enamel Zinc Thermistoir Silver Hint 75). The resistance value of wire wound resistor ranges from? 10 Mega Ohms to 100 Mega Ohms 1Ohm to 1 Mega Ohm 1Ohm to 100 Mega Ohm None of the above Hint Resistors MCQs for Quiz 76). The resistance value of wire wound resistor ranges from? 10 Mega Ohms to 100 Mega Ohms 1Ohm to 1 Mega Ohm 1Ohm to 100 Mega Ohm None of the above Hint 77). What is the typical tolerance value of wire wound resistor? 1 % - 15 % 0.5 % - 5% 0.01 % - 1 % 0.09 % - 7 % Hint 78). Which of the following resistor is called Non Linear? Varistor Wire wound Carbon composition LDR Hint 79). Varistors are available in ….types? 3 5 7 4 Hint 80). The resistance of an LDR mainly depends on…? Light intensity Temperature Construction Surroundings Hint 81). Magneto resistor is used to measure…? Resistance Magnetic fields Temperature Tolerance Hint 82). Photo resistor is also called as? Magneto resistor Carbon composition Varistor LDR Hint 83). When four resistors like 4 ohm are connected in parallel within the circuit then what will be the resistance value? 4 ohm 1 ohm 16 ohm 8 ohm Hint 84). When four resistors like 4 ohm are connected in series within the circuit then the resistance value is? 1 ohm 16 ohm 4 ohm 8 ohm Hint 85). In parallel connection, the resistance will be decreased because of…? Due to reduce in effective cross-section area Because of effective area increase for the cross section Reduce in length. Reduce in width Hint 86). Which of the following resistor have their own marking values? SMD Varistor Rheostat None of the above Hint 87). Which of the following type resistor uses a color coding system? SMD PTH Variable Resistor None of the above Hint 88). What is the tolerance for Gold color in a resistor? ±2% ±5% ±7% ±10% Hint 89). What is the Silver color tolerance of a resistor? ±5% ±8% ±10% ±15% Hint 90). Which of the following resistor is variable type? Trimmer LDR Rheostat a & c Hint 91). The wire precision resistor was invented by? Otis Frank Boykin Isaac newton Roger penrose Raymond A Hint 92). Variable resistor is used to control? Temperature Volume Resistance None of the above Hint Please refer to this link to know more about Variable Resistor 93). Ohms law is invented by…? Newton Charles Ohm None of the above Hint 94). Ohms law can be followed by…? Arc lamp Metal rectifier Crystal detector Copper electrode Hint 95). The Ohms law condition is... The temperature must be stable The ratio of voltage & current must be stable The temperature must change Current & voltage must be proportional Hint 96). 1V is equivalent to…? 1J/ 1C 1J/ 1W 1J/ 1C 1W/ 1Ohm Hint 97). Which of the following circuits uses Ohms law? Only reactive circuits Only resistive circuits Both a & b None of the above Hint 98). If the 20ohms resistance resistor carries 3A current then what is the voltage? 60V 23V 6.6V 17A Hint 99). In all over the series circuit, which of the quantity will remain the same? Current Power Resistance Voltage Hint 100). Which of the following component is passive? Resistor Transistor SCR MOSFET Hint Time is Up! Time's up
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