Transformers Multiple Choice Questions (MCQ) PDF Download

MCQ 1: Dimensions of the rate of change of flux are equivalent to those of

1. voltage
2. current
3. 1/charge
4. charge

MCQ 2: The turn ratio (r) for a step-up transformer is

1. r = 0
2. r > 1
3. r < 1
4. r = 1

MCQ 3: Practical application of the mutual induction is

1. transformer
2. DC generator
3. AC generator
4. capacitor

MCQ 4: Transformer is the device that works on the principle of

1. self-induction
2. Lenz's law
3. mutual induction
4. motional EMF

MCQ 5: Efficiency of the transformer is defined as

1. (output power/input power) × 100
2. (input power/output power) × 100
3. input power/output power
4. output power × 100