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MHT CET20243 May 2024Morning ShiftPhysicsAlternating CurrentActual

A transformer having efficiency 90 % is working on 200 V and 3 kw power supply. If the current in the secondary coil is 6 A , the voltage across the secondary coil and the current in the primary coil are respectively

Options

  1. A300 ~V , 15 ~A
  2. B450 ~V , 15 ~A
  3. C450 ~V , 13 5 ~A
  4. D600 ~V , 15 ~A

Correct answer

B. 450 ~V , 15 ~A

Step-by-step solution

aligned & Power output =3 90 100 =2.7 ~kW & I_s=6 ~A & V_S= 2.7 10^3 6 =450 ~V and I_p= 3 10^3 200 =15 ~A aligned

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