Question # 1

the core of transformer is laminated so reduce.

Choose an answer

Magnetic loss

Hysteresis loss

Eddy current loss

Electric loss

Main reason for world wide use of A.C. is

Choose an answer

It is cheaper

Transmitted

Botha a and b

Reaches in short time

A charge Q is divided into tweo parts q and Q-q and seperated by a distance R. The force of equilibrium between them will be maximum when:

Choose an answer

q=Q/4

q=Q/2

q=Q

None of these

The induction can be increased by winding the wire around a core made of.

Choose an answer

Copper

Silicon

Iron

Aluminum

Photodiode is used for:

Choose an answer

Detection of current

Detection of heat

Detection of light

Both a & b

Which of the modulus of elasticity is involved in compressing a rod to decrease its length ?

Choose an answer

Young's modulus

Bulk modulus

Modulus of elasticity

None of these

An electron moves at 2 x 10² m/sec perpendicular to magnetic field of 2T what is the magnitude of magnetic force:

Choose an answer

1 x 10^-6 N

6.4 x 10^-17 N

3.6 x 10^-24 N

4 x 10⁶ N

SI unit of reactance is.

Choose an answer

Ohm

Mho

Farad

Henry

Electric power:

Choose an answer

Vx1

V²x1

V/1

V/1²

When a coil is moved in a uniform magnetic field, an induced emf is produced due of change in

Choose an answer

Flux density

Electric flux

Magnetic flux

Magnetic field strength

The existence of positron in 1928 was predicted by

Choose an answer

Anderson

Dirac

Chadwick

Plank

The quantity/factor h/m_oc has the dimensions of.

Choose an answer

Length

Time

Mass

Energy

Light of 4.5 eV is incident on a Cesium surface and stopping potential is 0.25 eV, maximum K.E. of emitted electron is.

Choose an answer

4.5 eV

4.25 eV

4.75 eV

0.25 eV

The sensor of light is.

Choose an answer

Transistor

LED

Diode

Light dependent resistance

The total flux through a closed surface.

Choose an answer

Directly proportional to shape and geometry

Independent of medium

Depend on shape and geometry

Dependent on medium and the charge enclosed

Various types of cancer are treated by

Choose an answer

Carbon -14

Nickel -63

Cobalt -60

Strontium -90

The electric field created by positive charge is

Choose an answer

Radially inward

Zero

Circular

Radially outward

If speed of rotation of a generator is doubled the output voltage will be.

Choose an answer

Remain same

Double

Four time

One half

More Classes

Other Links

Physics Fsc Part 2 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

Choose an answer