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MHT CET202620 April 2026Evening ShiftPhysicsAlternating CurrentActual

A current of 4 A is flowing at 230 V in the primary coil of a transformer. If the voltage produced in the secondary coil is 2300 V and 40 % of power is lost, then the current in the secondary will be

Options

  1. A0.24 A
  2. B0.2 A
  3. C0.12 A
  4. D0.4 A

Correct answer

A. 0.24 A

Step-by-step solution

Power in primary coil, P_p = V_p I_p P_p = 230 4 = 920 W Since 40 % of power is lost, the efficiency of the transformer is = 60 % . Power in secondary coil, P_s = P_p P_s = 0.60 920 = 552 W Using P_s = V_s I_s 552 = 2300 I_s I_s = 552 2300 = 0.24 A Answer: 0.24 A

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