Question # 1

In electric motor, the brushes are made of:

Choose an answer

Lead

Graphite

Iron

Wood

Eight bits combine to form:

Choose an answer

A byte

Megabyte

Kilobyte

Gigabyte

D.C. motor converts.

Choose an answer

Mechanical energy into electrical energy

Mechanical energy into chemical energy

Electrical energy into mechanical energy

Electrical energy into chemical energy

One micro coulomb charge is equal to:

Choose an answer

10^-3c

10³c

10⁶c

10^-6c

When did Michael Faraday discover Electromagnetic induction?

Choose an answer

1841

1831

1821

1811

According to Fleming's left hand rule the direction of force on the conductor is given by:

Choose an answer

Thumb

Fore finger

Middle finger

None of these

Changing magnetic field in a closed circuit can induce:

Choose an answer

e.m.f

Electric current

Force

Both A and B

The output of a two input NOR gate is 1 when:

Choose an answer

A is 1 and B is 0

A is 0 and B is 1

Both a and b are 0

Both a and b are 1

The force on a current carrying conductor is maximum if angle between field and conductor is:

Choose an answer

0^o

90^o

180^o

45^o

The magnetic field of a solenoid resembles as:

Choose an answer

Iron wire

U-shape magnet

Bar magnet

Point charge.

The voltage is decreased by:

Choose an answer

Step-up transformer

Step-down transformer

A.C. generator

D.C. Motor

When an electric current passes through a conductor, which field is produced around it?

Choose an answer

Electric field

Magnetic field

Gravitational field

Electrostatic field

In C.R.O grid is always connected with potential:

Choose an answer

Negative

Positive

High positive

Zero positive

More Classes

Other Links

Physics 10th Class English Medium Unit 6 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