AE BASIC QUESTIONS

What is the semiconductor diode used as?

• Oscillator

• Amplifier

• Rectifier

• Modulator

What is rectification?

• Process of conversion of ac into dc

• Process of conversion of low ac into high ac

• Process of conversion of dc into ac

• Process of conversion of low dc into high dc

Forward biasing of p-n junction offers infinite resistance.

• True

• False

What is a transistor made up of?

• Chip
  

• Insulator

• Semiconductor

• Metal

Identify the condition for a transistor to act as an amplifier.

• The emitter-base junction is forward biased and the base-collector junction is reverse biased
  

• No bias voltage is required

• Both junctions are forward biased

• Both junctions are reverse biased

The element that has the biggest size in a transistor is ………………..

• 1. collector

• 1. base

• 1. emitter

• 1. collector-base-junction

A transistor is a …………… operated device

• 1. current

• 1. voltage

• 1. both voltage and current

• 1. none of the above

At the base-emitter junctions of a transistor, one finds ……………

• 1. a reverse bias

• 1. a wide depletion layer

• 1. low resistance

• 1. none of the above

In a transistor ………………..

• I_C = I_E + I_B

• I_B = I_C + I_E

• I_E = I_C – I_B

• I_E  = I_C + I_B

In a transistor, signal is transferred from a …………… circuit

• 1. high resistance to low resistance

• 1. low resistance to high resistance

• 1. high resistance to high resistance

• 1. low resistance to low resistance