GATE-19: Electrical Measurement & Measuring Instrument Quiz-4

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Question 1

Which bridge is most suitable for measurement of inductance of a coil with a large time constant -

• AMaxwell Inductance Bridge
• BKelvin Double bridge
• CSchering Bridge
• DHay Bridge

Question 2

For which of the following purpose Wien Series Bridge is used?

• AAudio frequency measurement of inductors
• BAudio frequency measurement of capacitors
• CVideo frequency measurements of capacitors
• DNone of these

Question 3

Find the value of the resistance and the inductance of the branch CD if the balance is obtianed under these conditions. if the armsof ana.c. maxwellbridgeare given as: AB is a non-inductive resistanceof 1000 Ω in parallel with a capacitor of capacitance 0.5 μF, BC is a non inductive resistance of 600Ω and CD is an inductive impedance which is unknown and DA is a non-inductive resistance of 400 Ω?

• A100 Ω, 0.9H
• B120Ω, 0.10H
• C240 Ω, 0.12H
• D260Ω, 0.8 H

Question 4

In a test on a Bakelite sample at 20 kV, 50 Hz by a Schering bridge having a standard capacitor of 106 μF, balance was obtained with a capacitance of 0.35 μF in parallel with a noninductive resistance of 318 Ω, the noninductive resistance in remaining arm of the bridge being 130 Ω.
Determine the value of capacitance of the specimen.

• A239.29 μF
• B249.29 μF
• C259.29 μF
• D269.29 μF

Question 5

In the circuit shown above when if then the value of is ____.

• A2
• B3
• C4
• D10

Question 6

For the given bridge circuit, determine the unknown capacitance and resistance , under balanced conditions.

• A,
• B,
• C,
• D,

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