Electro Magnetic Induction And Alternating Currents Question 3

Question: A choke coil is preferred to a rheostat in ac circuit as

Options:

A) It consumes almost zero power

B) It increases current

C) It increases power

D) It increases voltage

Show Answer

Answer:

Correct Answer: A

Solution:

A choke coil contains high inductance but negligible resistance, due to which power loss becomes appreciably small.



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