Question # 1

Improper bisting of a transistor circiut produces:

Choose an answer

Heavy loading of emitter current

Distortion in the output output signal

Excessive heat at collector terminal

Faculty location of load line

Rectification is the process of converting.

Choose an answer

D.C. into A.C.

A.C. in to D.C.

Low signal to high

High signal to low

The input resistance of an op amplifier is.

Choose an answer

Low

High

Zero

Equal to output resistance

the number of terminals in a semiconductor diode are

Choose an answer

2

3

4

5

The term invertor is used for.

Choose an answer

NOR gate

XNOR gate

NAND gate

NOT gate

Automatic function of street light can be done by the use of.

Choose an answer

Inductor

Rectifier

Comparator

emf

Which diode works at reverse biasing.

Choose an answer

LED

Photo voltaic cell

Photo diode

Silicon diode

Most of the electrons in the base of an NPN transistor flow:

Choose an answer

Out of the base lead

Into the collector

Into the emit

Into the base supply

The mathematical symbol for NOR operation is

Choose an answer

X = A . B

X = A + D

Photo diode detects.

Choose an answer

Visible light

Radio waves

X rays

All of them

The gate, which changes the logic level to its opposite level is called

Choose an answer

NOR gate

AND gate

OR gate

NOT gate

Greater concentration of impurity is added in.

Choose an answer

Base

Emitter

Collector

LED

Transistors are made from

Choose an answer

Plastics

Metals

Insulator

Doped semi conductors

A light emitting diode emits light only when

Choose an answer

Reverse biased

Forward biased

Unbiased

None of these

The potential difference across the depletion region of germanium is.

Choose an answer

0.3 V

0.5 V

0.7 V

0.8 V

Minimum number of semi conductor diodes required for full wave rectification are.

Choose an answer

1

2

3

4

Light emitting diodes are made from semiconductors.

Choose an answer

Silicon

Germanium

Carbon

Gallium arsenide

More Classes

Other Links

Physics Fsc Part 2 Chapter 7 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer