Question # 1

Photo diode is used for detection of.

Choose an answer

Heat

Magnet

Current

Light

Which diode works at reverse biasing.

Choose an answer

LED

Photo voltaic cell

Photo diode

Silicon diode

In case of op-amp as an inverting amplifier, V₊ - V_- = 0, this is because

Choose an answer

Open gain loop is very low

Closed loop gain is very high

Open loop gain is very high

Both (a) and (a)

The sensor of light is.

Choose an answer

Transistor

LED

Diode

Light dependent resistance

A diode characteristic curve is a plot between

Choose an answer

Current and time

Voltage and time

Voltage and current

Forward voltage and reverse voltage

The average gap for Germanium at 0K is

Choose an answer

1.12 ev

0.02 ev

6.72 ev

7.2 ev

In a transistor, collector current is controlled by:

Choose an answer

Collector voltage

Base current

Collector resistance

All of the above

For normal transistor the emitter current can be given by

Choose an answer

I_E = I_C

I_E = I_C + I_B

I_E = I_B

None of these

Which is not fundamental logic gate.

Choose an answer

NOT

AND

OR

NAND

The resistance between the inverting (-) and non inverting inputs is called Input resistance and is the order of.

Choose an answer

Ohms

Kilo Ohms

Mega Ohms

Thounds Ohms

The gain of transistor amplifier depends upon

Choose an answer

Resistance connected with collector

Resistance connected with base voltage

Input voltage

Output voltage

Which one has greater cone of impurity among all:

Choose an answer

Emitter

Base

Collector

All are pure

An expression for gain of an inverting amplifier is

Choose an answer

(R₁R₂)

None of these

Transistor was invented by:

Choose an answer

Bardeen

Micheal faraday

Lenz

Newton

The central region of a transistor is called.

Choose an answer

Emitter

Collector

Base

Neutral

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

For rectification we use.

Choose an answer

Transformer

Diode

Choke

Generator

In photovoltaic cell, current is directly proportional to.

Choose an answer

Wavelength of light

Intensity of light

Energy

Frequency of light

More Classes

Other Links

Ics Part 2 Physics Chapter 7 Test Online 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

Choose an answer