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In: Electrical Engineering

Choose the correct answer from the followings: a) In Wheatstone bridge, when it is balanced the...

Choose the correct answer from the followings:

a) In Wheatstone bridge, when it is balanced the galvanometer reads

1. Infinity 2. Zero 3. 5 mA 4. 10 mA
b) In PMMC, dumping force helps .............

1. To move the pointer to read our measurements correctly 2. To reset our readings back to zero 3. To stabilize the pointer during transition between readings 4. All the above
c) A current transformers are used for:

1. For cost effective measurement 2. For protections 3. To reduce the cost of relay and circuit-breaker in high current enviroemnt 4. All the above

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