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MHT CET202311 May 2023Evening ShiftPhysicsAlternating CurrentActual

The a.c. source of e.m.f. with instantaneous value ' e ' is given by e=200 (50 t) volt. The r.m.s. value of current in a circuit of resistance 50 is

Options

  1. A0.2828 ~A
  2. B2.828 ~A
  3. C28.28 ~A
  4. D282.8 ~A

Correct answer

B. 2.828 ~A

Step-by-step solution

e.m.f e =200 (50 t ) V Current is given by: I _ o = e _ o R = 200 50 =4 ~A .....(from (i)) R.M.S value of current: I_ r . ms = I _ 2 = 4 2 =2.828 ~A

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