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.
BETA
