MHT CET 2025 Physics question
The power factor of a CR circuit is , If the frequency of a.c. signal is halved, then the power factor of the circuit will become
Answer: (B)
Solution
Power factor of a series CR circuit: . Given : , so . Capacitive reactance ; halving the frequency doubles it: . New power
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account