Question # 1

Which device has two coils, primary and secondary?

Choose an answer

D.C. Motor

Transformer

A.C. genrator

a and b

Transformer which increase voltage is called.

Choose an answer

Step-up transformer

Step down transformer

D.C.Moter

A.C.genrator

Who discovered Electromagnetic induction?

Choose an answer

Michael Faraday

Flemiing

Ohm

Coulomb

Number of poles in a magnet is:

Choose an answer

One

Two

Three

Unlimited

In A.C. generator flux will be zero if coil is to the field.

Choose an answer

90^o

45^o

Parallel

Inclined

According to coulomb’s law, what happens to the attraction of two oppositely charged objects as their distance of separation increases:

Choose an answer

Increases

Decreases

Remains unchanged

Cannot be determined

Eight bits combine to form:

Choose an answer

A byte

Megabyte

Kilobyte

Gigabyte

The lines will be in the form of concentric circles, if conductor is:

Choose an answer

Circular

Straight

Solenoid

None of these

A transformer has Np =100 and Ns =500 , if 6 volt D.C is applied across its primary, the induced voltage.

Choose an answer

0 V

30 V

45 V

60 V

When a current carrying conductor is placed in magnetic field at right angle to it. The direction of force acting upon it is:

Choose an answer

The same as direction of field

Opposite the direction of field

Makes an angle of 45^owith the current

At right angle to both the field and the current.

When a ray of light enters from denser medium to rare medium, the angle of incidence for which angle of refraction is 90° is called:

Choose an answer

Angle of incidence

Critical angle

Angle of refraction

Angle of deviation

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

The standard group of bits in digital electronic is:

Choose an answer

5 bits

6 bits

7 bits

8 bits

More Classes

Other Links

10th Class Physics Chapter 15 Electromagnetism English Medium KPK Boards Online Mcqs 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