A transformer having efficiency of 90% is working on 200 V and 3kW power supply

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

Options

(a) 300 V, 15 A
(b) 450 V, 15 A
(c) 450 V, 13.5 A
(d) 600 V, 15 A

Correct Answer:

450 V, 15 A

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. The resistance of a wire is 5 ohm at 50° C and 6 ohm at 100° C. The resistance
  2. A uniform wire of resistance 9Ω is joined end-to-end to form a circle. Then
  3. The angular momentum of an electron is J. The magnitude of the magnetic moment
  4. A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
  5. An object is attached to the bottom of a light vertical spring and set vibrating.