AC Bridges - 2 - MCQs with answers

AC Bridges - 2 - MCQs with answers


Q1. If C4 is the capacitance and R4 is the resistance of Hay’s bridge, then the Q factor of Hay’s bridge is given by

A. 1 / ωC4R4

B. ωC4R4

C. ωC4 / R4

D. ωR4 / C4

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ANSWER: A. 1 / ωC4R4



Q2. The Hay’s bridge is suitable for the measurement of inductances of coils with Q factor

A. More than 10
B. Less than 1
C. More than 1
D. Less than 10

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ANSWER: A. More than 10



Q3. Anderson bridges is suitable for the measurement of

A. Resistance
B. Inductance
C. Capacitance
D. All of these

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ANSWER: B. Inductance



Q4. The dielectric loss of pure capacitor is equal to

A. 1
B. 0
C. Maximum
D. None of these

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ANSWER: B. 0



Q5. If δ is the loss angle then the dissipation factor is given by

A. sin δ
B. cos δ
C. tan δ
D. cot δ

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ANSWER: C. tan δ



Q6. The Schering bridges can be used at

A. low voltage
B. high voltage
C. medium voltage
D. both (a) and (b)

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ANSWER: D. both (a) and (b)



Q7. The bridge suitable for the measurement of capacitance is /are

A. Anderson’s bridge
B. Hay’s bridge
C. Owen’s bridge
D. None of these

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ANSWER: D. None of these



Q8. Schering bridges are used for the measurement of

A. Unknown capacitance
B. Dielectric loss
C. Power factor
D. All of these

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ANSWER: D. All of these


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