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MHT CET20244 May 2024Evening ShiftPhysicsAlternating CurrentActual

An alternating current is given by I=100 (50 t) . How many times will the current become zero in one second?

Options

  1. A50 times
  2. B25 times
  3. C40 times
  4. D100 times

Correct answer

A. 50 times

Step-by-step solution

Current is given by, I = I ₀ t ...(i) Given, I=100 (50 t) Comparing with (i), =50 2 f =50 f =25 ~Hz 25 cycles per second Current becomes zero twice in one cycle Current becomes zero, 25 2=50 times

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