Ammeter Question & Answers April 3, 2023 By Wat Electrical This article lists 75 Ammeter MCQs for engineering students. All the Ammeter Questions & Answers below include a hint and a link to the relevant topic wherever possible. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the Ammeter. An instrument that measures either direct or alternate currents is referred to as Ammeter. The current measured through these devices is of a wider range. For higher values, only the smaller current portion gets directed through the meter. The shunt placed with the meter in a parallel way carries major portions. Earlier the ammeters used to be in labs for operations and rely on Earth's magnetic field. Further, the improvements made in the circuits of ammeters such that mounting in any position can provide the measurements accurately using an electric-power system. There is a relation between physical force, magnetic field, and electric currents. This is noticed by Hans Christian Orsted for the first time in the year 1820 from the needle of the compass deflecting from the North point when the flow of current is in the adjacent wire. Tangent galvanometers are utilized for measuring current using the technique mentioned. But these instruments can measure current when aligned on Earth's magnetic field. But Ammeters provide ease while measuring currents. These instruments are placed in a circuit in series and the current values can be measured. 1). Which device is used to measure current? Voltmeter Ohmmeter Ammeter Magnetometer Hint 2). How to connect an ammeter to measure direct currents? Parallel Series Amid Parallel & Series Connection Anti-series Hint Read More about Ammeter 3). Usually, ammeters have ______? High Resistances Low Resistances Low Voltages Low Capacitance Hint 4). What is the current range measured using a milliammeter? Micro-Ampere Milliampere Megaampere Kiloampere Hint 5). What relied on Earth's magnetic field to operate? Voltmeter Ohmmeter Ammeter Magnetometer Hint 6). What is the letter that denotes ammeter presence? A B V I Hint 7). What is the purpose of a shunt in the ammeters? Increase Resistivity By Pass Current Increase Sensitivity None Hint 8). The shunt resistances in _______ are lesser than meter resistances? Voltmeter Ohmmeter Ammeter Magnetometer Hint 9). What does the shunt resistor consist of? Low-Temperature Coefficient High-Temperature coefficient Maximum Temperature Coefficient Infinite Temperature Coefficient Hint 10). What shows the magnitude of currents? Voltmeter Ohmmeter Ammeter Magnetometer Hint 11). How does the movement of the coil relate to the flow of current? Inversely Proportional Directly Proportional Independent Not Affected Hint 12). What is hooked to a galvanometer to convert it as an ammeter? Resistor Capacitor Inductor All Mentioned Above Hint 13). What is the Ammeter’s principle based upon? Electric Field Magnetic Field Quality Factor All Mentioned Above Hint 14). What should be maintained low in the ammeter? Resistance Capacitance Inductive Reactance a & c Hint 15). What does an ammeter contain? Wire Coil Permanent Magnet Moving Magnet a & b Hint 16). What is the current flowing through the circuit if it flows through the ammeter? Direct Current Indirect Current Alternating Current None Hint 17). What is the symbol of an ammeter? Circle Outside A Circle Inside A Circle Inside V Circle Outside O Hint 18). The reading in ammeters is displayed in ________? Ohms Volts Amperes Farads Hint 19). What is inserted by breaking a circuit for measuring currents? Voltmeter Ohmmeter Ammeter Magnetometer Hint 20). Why ammeters to calculate the current flow connected in the series? Allows Holes to Flow Allows Electrons to Flow Does not Allow Electrons to Flow Does not Allow Holes to Flow Hint 21). How the ammeters can be categorized? Depending on Construction Depending on Measurement of Currents Depending on Measurement of Temperature a & b Hint 22). What is PMCA? Permanent Moving Coil Ammeter Permanent Motion Conductor Anemometer Partially Moving conductor Ammeter Permanent Moving Coil Anemometer Hint 23). PMCA is the classification of ammeter _________? Depending on Construction Depending on Measurement of Currents Depending on Measurement of Temperature a & b Hint 24). In PMCA, the coil deflecting decides ___________. Amount of Current Flow Amount of Voltage Flow Amount of Temperature Amount of Resistance Hint 25). What measures alternating currents precisely? Permanent Moving Coil Ammeter Rectifier Type Ammeter Electro-dynamometer Moving Iron Ammeter Hint Ammeter MCQ for Students 26). How is the assemble deflection related to the current flowing in Moving Iron Ammeter? Inversely Proportional Directly Proportional Independent Not affected Hint 27). Which ammeter is accurate compared to other types? Permanent Moving Coil Ammeter Rectifier Type Ammeter Electro-dynamometer Moving Iron Ammeter Hint 28). Which ammeters can measure both AC & DCs? Permanent Moving Coil Ammeter Moving Iron Ammeter Electro-dynamometer b & c Hint 29). Which ammeter is preferred in communications? Permanent Moving Coil Ammeter Rectifier Type Ammeter Electro-dynamometer Moving Iron Ammeter Hint 30). What is used to measure direct currents? Permanent Moving Coil Ammeter Rectifier Type Ammeter Electro-dynamometer Moving Iron Ammeter Hint 31). In how many types the ammeters are categorized based on currents measured? Four Three Two None Hint 32). Why do ammeters allow lower resistances? To Allow Input Currents Completely To Restrict the Flow of Input Currents Low Voltage Drop Takes Place a & c Hint 33). Which is known as D’Arsonval Meter? Permanent Moving Coil Ammeter Rectifier Type Ammeter Electro-dynamometer Moving Iron Ammeter Hint 34). Which ammeter measures current due to angular deflections in the coil? Permanent Moving Coil Ammeter Rectifier Type Ammeter Electro-dynamometer Moving Iron Ammeter Hint 35). What happens in a Moving Iron Ammeter? Coil Does not Move Coil Moves Freely Coil is Fixed Coil is Harder to Move Hint 36). What are the reasons for the power loss in the device? Ammeters Current Measured Ammeters Internal Resistance Ammeters Voltage Measured a & b Hint 37). The current measured due to movements of movable iron in _________? DC Ammeter AC Ammeter Rectifier Based Ammeter Conductor Based Ammeter Hint 38). What measures the current flow through the conductor? DC Ammeter AC Ammeter Rectifier Based Ammeter Conductor Based Ammeter Hint 39). Analog ammeter that has equally divided linear scale __________? DC Ammeter AC Ammeter Rectifier Based Ammeter Conductor Based Ammeter Hint 40). How many divisions usually does an ammeter scale have? 40 30 20 10 Hint 41). How many terminals does the ammeter have? Four Three Two One Hint 42). Resistor in parallel to PMMC galvanometer is known as _________? DC Ammeter AC Ammeter Rectifier Based Ammeter Conductor Based Ammeter Hint 43). Which ammeters are sensitive to polarity they are connected? DC Ammeter AC Ammeter Rectifier Based Ammeter Conductor Based Ammeter Hint 44). Moving Magnet Ammeters carry ______ currents? Less Small Large Zero Hint 45). Which ammeter contains an electro-magnet? Moving Coil Ammeter Moving Iron Ammeter Electrodynamic Moving Magnet Hint 46). Electrodynamic Ammeters respond to _________? Alternating Current Direct Current Both a & b Neither a nor b Hint 47). What measures the current flowing through circuit branches? Voltmeter Ohmmeter Ammeter Magnetometer Hint 48). Galvanometer is an _________? Voltmeter Ohmmeter Ammeter Magnetometer Hint 49). Ammeter belongs to _____________? Absolute Instruments Integrating Instruments Secondary Instruments Recurring Instruments Hint 50). Which ammeter consists of a dual-slope integrator? Digital Ammeter Analog Ammeter Hybrid Ammeter All Mentioned Above Hint Ammeter MCQs for Interviews 51). Which ammeters are installed on large panels of control? Digital Ammeter Analog Ammeter Hybrid Ammeter All Mentioned Above Hint 52). Which detects the problem related to low or high current levels? Voltmeter Ohmmeter Ammeter Magnetometer Hint 53). Clamp meters & transformers combined to measure _________? Currents Voltages Temperature Resistances Hint 54). What are the factors considered before the selection of digital ammeters? Required Minimum Temperature Amp Measurement range Required Maximum Temperature All Mentioned Above Hint 55). Why ammeters must be connected serially with the circuit? Higher Internal Resistances Lower Internal Resistances Infinite Internal Resistances Maximum Internal Resistance Hint 56). Pico ammeters are utilized in __________? Voltmeter Ohmmeter Multi-meter Magnetometer Hint 57). What estimates the charge of batteries? Moving Coil Ammeter Moving Iron Ammeter Integrating Ammeter Moving Magnet Hint 58). What is used in measuring RF currents? Moving Coil Ammeter Moving Iron Ammeter Electrodynamic Hot-wire Hint 59). Which ammeters are utilized in measuring currents of AC circuits at industrial frequencies? Moving Coil Ammeter Moving Iron Ammeter Electrodynamic Moving Magnet Hint 60). What measures the current that is drawn from appliances? Voltmeter Ohmmeter Ammeter Magnetometer Hint 61). What is the internal resistance an ammeter offers ideally? High Low Infinite Zero Hint 62). What has an in-built fuse to get protected from the heavy flow of currents? Voltmeter Ohmmeter Ammeter Magnetometer Hint 63). What is meant by swamping resistances? Resistance with Zero Temperature Coefficient Resistance with High-Temperature Coefficient Resistance with Maximum Temperature Coefficient Resistance with Infinite Temperature Coefficient Hint 64). What decreases the effect of the temperature on the ammeter? Swamping Capacitance Swamping Inductance Swamping Resistance Swamping Reactance Hint 65). What is used to calculate the exact current flowing via the conductor? Voltmeter Ohmmeter Ammeter Magnetometer Hint 66). Galvanometer connected with shunt resistances makes it function as ___________? Voltmeter Ohmmeter Ammeter Magnetometer Hint 67). Why resistances should be low in ammeters? Resistance affects Current Resistance and Current are Independent Resistance increases Current Flow Resistance does not Depend on Currents Hint 68). What happens if the ammeter is connected in parallel? Circuit gets Damaged Chances of Short-circuit Current Measured by Ammeter a & b Hint 69). What uses ammeters to measure current? Machines Motors Pumps All mentioned Above Hint 70). What can never get connected to parallel lines? Voltmeter Ohmmeter Ammeter Magnetometer Hint 71). Ammeters are utilized in ___________? Bridges Galvanometers Electrical Circuit All Mentioned Above Hint 72). What is formed by connecting the resistor in parallel to the galvanometer? Voltmeter Ohmmeter Ammeter Magnetometer Hint 73). Which can read the micro-amp value of current? Voltmeter Ohmmeter Ammeter Galvanometer Hint 74). DC currents are measured using __________? Voltmeter Ohmmeter Ammeter Galvanometer Hint 75). What measures the electricity flowing? Voltmeter Ohmmeter Ammeter Magnetometer Hint For More MCQs Energy Meter Question & Answers Q Meter Question & Answers Tachometer Questions & Answers Anemometer Questions & Answers Time's up
