Question # 1

For a current carrying solenoid the term 'n' has unit as.

Choose an answer

No unit

m^-1

m^-2

m-3

The field is strong and uniform.

Choose an answer

Inside the solenoid

Surrounding of solenoid externally

Perpendicular to solenoid

All of above

A charged particle enters in a strong magnetic field its K.E.

Choose an answer

Remain constant

Increases

Decreases

Increases then decreases

Cathode ray oscilloscope works by deflecting a beams

Choose an answer

Neutrons

Protons

Electrons

Positron

Energy stored per uint volume inside a solenoid is called as

Choose an answer

energy density

Electric flux

Work

Volume charge density

Torque on a current carrying coil

Choose an answer

τ=IBA cos

τ = ILB sinα

τ = IBA sinα

τ = ILBcosα

A dot represents the direction of magnetic field.

Choose an answer

Out of page

Into the page

Tangent to page

Parallels to page

Sensitivity of a galvanometer can be increased by

Choose an answer

Decreasing the value of torsional couple

Decreasing number of turns

Decreasing area of plane of coil

Decreasing magnetic field

e/m=

Choose an answer

v/Br

Br/V

VB/r

Vr/B

To convert a galvanometer into an ammeter, we connect with it a

Choose an answer

Shunt resistance

Low value parallel

Low value by pass resistor

All of above

An ammeter is an electrical instrument which is used to measure.

Choose an answer

Voltage

Current

Resistance

None

If current flowing through a solenoid becomes four times, then magnetic field inside becomes.

Choose an answer

two times

three times

four times

Half

The value of e/m is smallest for

Choose an answer

Proton

Electron

Beta particle

Positron

The unit of magnetic induction is:

Choose an answer

Tesla

Weber

Weber metre

NAm^-1

A photon while passing thorugh a magnetic field are deflected towards:

Choose an answer

North pole

South pole

Are ionized

None of these

Two parallel wires carrying currents in the opposite direction.

Choose an answer

Repel each other

Attract each other

Have no effect upon each other

They cancel out their individual magnetic fields.

The dimensions of magnetic flux are

Choose an answer

M¹L^-2T¹A¹

MLT^-2A^-1

ML²T²A^-1

ML²T^-2A^-1

If the length and number of turns of a solenoid are doubled strength of magnetic field with.

Choose an answer

Be doubled

Become half

Not change

Be four time

More Classes

Other Links

Physics FSC Part 2 Chapter 14 Online MCQ's 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