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11 Dec 2019
1. A step-up transformer increases 15.7V to 110V. What is the current in the secondary as compared to the primary? Assume 100 percent efficiency.
2. An ideal step-down transformer has a primary coil of 400 turns and a secondary coil of 19 turns. It's primary coil is plugged into an outlet with 120V (AC), from which it draws an rms current of 0.51A.
What is the voltage in the secondary coil?
1. A step-up transformer increases 15.7V to 110V. What is the current in the secondary as compared to the primary? Assume 100 percent efficiency.
2. An ideal step-down transformer has a primary coil of 400 turns and a secondary coil of 19 turns. It's primary coil is plugged into an outlet with 120V (AC), from which it draws an rms current of 0.51A.
What is the voltage in the secondary coil?
KathLv10
7 Apr 2021
