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MHT CET20226 Aug 2022Morning ShiftPhysicsAlternating CurrentActual

An ideal transformer is used to set up an alternating e.m.f. of 220 ~V to 4.4 kV to transmit 6.6 ~kW of power. The primary coil has 100 turns. What is current rating of secondary?

Options

  1. A1.0 ~A
  2. B0.75 A
  3. C2.5 ~A
  4. D1.5 ~A

Correct answer

D. 1.5 ~A

Step-by-step solution

aligned & P₀=V_s i_s & 6.6=4.4 i_s i_s=1.5 ~A aligned

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