When a transformer is connected to 120-volt ac, it supplies 3000 V to a device. The current through the secondary winding then is o.06 A and the current through the primary is 2 A. The number of turns in the primary winding is 400. The number of turns in the secondary winding is:
Correct answer: E. 10000
- A. 16
- B. 30
- C. 1000
- D. 2000
- E. 10000
Explanation
Turns(primary)/V(primary)=Turns(secondary)/V(secondary)400 turns / 120 V = X turns / 3000 VX = 3000 * 400 / 120 = 10,000 turns
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