Varactor Diodes Multiple Choice Questions with Answers – PDF Download

MCQ 1: Varactor diodes are often used in:

1. rectifiers
2. regulators
3. converters
4. RF circuits

MCQ 2: If capacitor is determined by parameters of plate area 'A', dielectric constant 'E' and dielectric thickness 'd', then capacitance will be:

1. AEd
2. AE/d
3. Ad/E
4. Ed/A

MCQ 3: When depletion region becomes widen in Varactor diode, plate separation:

1. will increase
2. will decrease
3. become zero
4. become infinite

MCQ 4: Ratio of Varactor's capacitance at a specified minimum voltage to the capacitor at specified maximum voltage is termed as:

1. power factor
2. tuning ratio
3. slew rate
4. transfer function

MCQ 5: Key feature of Varactor diode is, it exhibits:

1. fixed capacitance
2. Variable capacitance
3. Variable resistance
4. fixed resistance