AC & DC Bridges – 1 – 2

6. The input to an AC bridges is fed from :

(a) An amplifier
(b) Regulated power supply
(c) Oscillator
(d) DC Battery

ANSWER

EXPLANATION

7. Schering bridge is used to :

(a) Determine dielectric loss
(b) Determine the inductance
(c) Measure mutual inductance
(d) Measure low resistance

ANSWER

EXPLANATION

8. The dielectric loss of a capacitor can be measured by :

(a) Hay bridge
(b) Schering bridge
(c) Maxwell bridge
(d) Anderson bridge

ANSWER

EXPLANATION

9. The ratio arm is used in bridge method of measurement basically :

(a) To speed up the response time for balancing
(b) To reduce the error due to the errors in known resistances
(c) To simplify the calculations
(d) To enhance the range of measurement

ANSWER

EXPLANATION

10. Which bridge is used for measuring audio and H.F. oscillation?

(a) Wein bridge
(b) Maxwell bridge
(c) Schering bridge
(d) None of the above

ANSWER

EXPLANATION

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