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MHT CET202520 Apr 2025Evening ShiftPhysicsAlternating CurrentActual

An ideal transformer converts 220 a.c. to 3.3 kV a.c. to transmit a power of 4.4 kW . If primary coil has 600 turns then alternating current in secondary coil is

Options

  1. A5 3 ~A
  2. B1 4 ~A
  3. C4 3 ~A
  4. D2 3 ~A

Correct answer

C. 4 3 ~A

Step-by-step solution

Alternating Current in Secondary Coil For an ideal transformer, power is conserved between the primary and secondary coils. The power supplied to the primary equals the power delivered by the secondary: P = V_s I_s Substitute P = 4400 W and V_s = 3300 V : 4400 = 3300 I_s Solving for I_s : I_s = 4400 3300 = 44 33 = 4 3 A This corresponds to option C .

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