Practice alternating current multiple choice questions (MCQs), A level physics test 1 for online course prep exams. Learn transformers in physics MCQs questions and answers on transformers in physics, electric power, meaning of voltage, ac power with answers.

Free alternating current quiz online, study guide has multiple choice question on 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 with options 25 v in secondary coil, 50 v in secondary coil, 60 v in secondary coil and 100 v in secondary coil to test online e-learning skills for viva exam prep and job's interview questions with answers key. Study to learn transformers in physics quiz questions with online learning MCQs for competitive 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 the potential difference in the 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