AC & DC Bridges – Exercise – 1

1. Wein bridge finds application in :

(a) Frequency determination
(b) Resistance measurement only
(c) Harmonic distortion analyzer
(d) a and c both

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

2. The most common method for measurement of low resistance is :

(a) Wheatstone bridge
(b) Potentiometer method
(c) Voltmeter-ammeter method
(d) Kelvin’s double bridge

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

3. Precision measurement of resistances is generally carried out by :

(a) Potentiometer method
(b) CRO method
(c) Voltmeter-ammeter method
(d) Bridge method

Answer
Answer : (d)
Explanation
No answer description available for this question. Let us discuss.

4. Wagner earthing device :

(a) Does not affect AC bridges
(b) Affects DC potentiometer
(c) Makes possible very high accuracy in measurement
(d) Reduces the frequency and waveform errors in AC bridges

Answer
Answer : (c)
Explanation
No answer description available for this question. Let us discuss.

5. The lower limit for bridge-method of measurement is decided by :

(a) The sensitivity of detector circuit
(b) Resistance of connecting wires and contact resistances
(c) Resistance of the other-three known arms
(d) None of these

Answer
Answer : (b)
Explanation
No answer description available for this question. Let us discuss.
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