Physics Learning Notes & Technology Articles

Practice alternating current multiple choice questions (MCQs), A level physics test 1 online to learn. Practice transformers in physics MCQs questions and answers on transformers in physics, electric power, meaning of voltage, ac power with answers. Free alternating current study guide has answer key with choices as 25 v in secondary coil, 50 v in secondary coil, 60 v in secondary coil and 100 v in secondary coil of multiple choice questions (MCQ) as if a secondary coil has 40 turns, and, a primary coil with 20 turns is charged with 50 v of potential difference, then potential difference in secondary coil would be to test learning skills. Study to learn transformers in physics quiz questions to practice MCQ based online exam preparation test.

MCQ. If a secondary coil has 40 turns, and, a primary coil with 20 turns is charged with 50 V of potential difference, then potential difference in secondary coil would be

1. 50 V in secondary coil
2. 25 V in secondary coil
3. 60 V in secondary coil
4. 100 V in secondary coil

D

MCQ. Generators at a power station produce electric power at voltage

1. 45 kW
2. 50 kW
3. 60 kW
4. 25 kW

D

MCQ. Equation which measures alternating voltage is

1. Vsin ω
2. sin t
3. Vo sinωt
4. V=IR

C

MCQ. In transformer, alternating current is induced in

1. primary coil
2. secondary coil
3. iron core
4. resistor

B