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Schering Bridge Question & Answers

March 31, 2023 By Wat Electrical

This article lists 50 Schering Bridge MCQs for engineering students. All the Schering Bridge 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 Schering Bridge.

The Schering bridge is a type of AC bridge circuit used to measure the capacitance of a capacitor or to measure the dielectric constant of a material. There are three main types of Schering bridges they are balanced, unbalanced, and Wien bridges.  

The purpose of a balanced and unbalanced Schering bridge is to measure the capacitance of a capacitor. The Wien bridge is a type of Schering bridge that measures the dielectric constant of a material. The balanced Schering bridge balances the ratio of the four resistors and the unknown capacitance to cancel out the effects of the capacitance reactance and it produces a null output when the bridge is balanced. 

The balanced Schering bridge requires a sensitive detector or null indicator to measure the null output and it can be affected by stray capacitances or inductances in the circuit. The calibration of capacitors, quality control of capacitors, and measurement of low-loss capacitors, are the applications of a balanced Schering bridge. 

The unbalanced Schering bridge is a simpler circuit than the balanced Schering bridge and it can measure small capacitances. The capacitance meter and HP-4192A impedance analyzer are the applications of an unbalanced Schering bridge. 

The Wein bridge only works at high frequencies, and it can be affected by stray capacitances or inductances in the circuit. The measurement of the dielectric constant of materials is a disadvantage of the Wein bridge. 

1). Which of the following bridges measures the capacitance of a capacitor?

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2). The resistance, impedance, and inductance are measured parameters of __________________ bridge?

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3). Which one of the following is a type of AC bridge?

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4). _______________ are the methods of measuring medium resistance?

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5). Which of the following bridges is suitable for measuring low loss capacitors?

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6). Which of the following bridges comes under self-inductance?

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7). The comparison of unknown capacitance with a known capacitance is a principle of _______________ method?

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8). Measuring the resonant frequency of an LC circuit containing the unknown capacitance is a principle of _________________ method?

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9). Which one of the following has a slider or a knob that can be moved to change the resistance?

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10). Which of the following bridges measures the dielectric constant of a material?

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11). ________________ bridge used for determining the value of unknown frequency?

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12). The resistance is the measured quantity in _________________ bridge?

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13). Which one of the following has a variable standard capacitor?

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14). Which one of the following bridges uses a sliding contact to change the ratio of two resistors?

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15). The frequency is a measured parameters of __________________ bridge?

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16). Measuring the impedance of the unknown capacitor at a given frequency is a principle of _________________ method?

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17). In which one of the following resistance values can be adjusted to vary the resistance?

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18). The inductance is the measured quantity in _________________ bridge?

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19). ________________ bridge used for measuring an unknown electrical capacitance and its dissipation factor?

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20). Which of the following bridges works at low to medium frequencies?

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Schering Bridge MCQ for Exams

21). _______________ is a method of measurement of capacitance?

Hint
22). Measuring the charge/discharge time of the unknown capacitor is a principle of _________________ method?

Hint
23). Which one of the following is used for fine tuning circuits?

Hint
24). ________________ bridge used for the measurement of unknown capacitance?

Hint
25). The capacitance ratio is the measured quantity in ______________ bridge?

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26). ________________ bridge used to measure the self-inductance of the coil?

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27). The mutual inductance in terms of a standard mutual inductance is a measured parameter of __________________ bridge?

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28). Which one of the following provides stable resistance without introducing noise or instability?

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29). The figure shown below is a circuit diagram of __________________ bridge?

Schering Bridge Circuit Diagram

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30). Which of the following bridges works at high frequencies?

Hint
31). _______________ is a method of measurement of inductance?

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32). Which one of the following comes in different types such as carbon composition, metal film, and wire wound?

Hint
33). The Schering bridge is used to measure the capacitance of an unknown capacitor known as _____________________?

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34). The self inductance in terms of a standard capacitance is a measured parameter of __________________ bridge?

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35). ________________ bridge used to compute the unknown resistance and inductance values?

Hint
36). The voltage ratio is the measured quantity in ______________ bridge?

Hint
37). Which one of the following has four arms, each with a resistor and a switch?

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38). The figure shown below is a phasor diagram of __________________ bridge?

Schering Bridge Phasor Diagram

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39). ________________ bridge used to measure the resistance and inductance of coils with high Q factor?

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40). Which of the following bridges consists of four resistors, one capacitor, one variable resistor, and AC voltage source?

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Schering Bridge MCQ for Quiz

41). The electronics, power systems, telecommunications are the applications of_________?

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42). ________________ bridge used for measurement of self-inductance of the circuit?

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43). Which one of the following requires four wire connections?

Hint
44). Which one of the following can be used in circuits where a specific resistance value is required?

Hint
45). Measuring the time constant of a known resistance capacitance circuit is a principle of _________________ method?

Hint
46). Which of the following bridges comes under mutual inductance?

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47). _______________ is a method of measuring low resistance?

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48). Which one of the following is a type of DC bridge?

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49). The resistance is a measured parameters of __________________ bridge?

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50). Which of the following bridges consists of three resistors, one capacitor, two variable resistors, and one AC voltage source?

Hint
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