Question # 1

The unit of magnetic induction B is

Choose an answer

Coulomb

Ampere

Coulomb/ampere

Weber/m²

The sensitivity of Galvanometer can be increased by:

Choose an answer

Increasing C/BAN factor

Decreasing C/BAN factor

Increasing angle θ

All of above

The Grid 'G' in cathode ray oscilloscope.

Choose an answer

Accelerate as well as focus electron beam

Control no. of electrons beam

Is at - Ve potential with respect to cathode.

Both d and b

μ_∘(Ampere's constant) has value.

Choose an answer

4πx10^-7 WbA^-1m^-1

4πx10^-17 Wbm²

4πx10⁷ WbA^-1m^-1

4πx10-27 Wb/m²

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 SI unit of magnetic induction 'B' Tesla is equal to.

Choose an answer

NA-1m-1

Nam-1

NA-1 m

Na2m-1

The anodes in cathode ray oscilloscope.

Choose an answer

Control number of waves

Control brightness of sept formed

Accelerate as well as focus beam

Negative potential w.r.t to chithode

For accurate measurement of current through a circuit, the resistance of ammeter should be

Choose an answer

Very small

Very high

Neither small nor high

None of the above

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.

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

Choose an answer

North pole

South pole

Are ionized

None of these

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

Useful device to measure resistance, current and voltage is an electronic instrument called.

Choose an answer

Volt meter

Ammeter

Ohmmeter

Digital Multimeter

The sum of electric and magnetic force is called.

Choose an answer

Maxwell force

Lorentz force

Newton's force

Centripetal force

A voltmeter is always connected in

Choose an answer

Parallel

Series

Perpendicular

Straight line

If a charge is at rest in a magnetic field then force on charge is

Choose an answer

Zero

Double

One fourth

Four times

A current carrying conductor experience maximum magnetic force in a uniform magnetic field when it is placed.

Choose an answer

Perpendicular to field

Parallel to field

At an angle of 60 ^o to the field

None of these

Torque on a current carrying coil

Choose an answer

τ=IBA cos

τ = ILB sinα

τ = IBA sinα

τ = ILBcosα

The sensitivity of galvanometer is given by

Choose an answer

CAN/B

C/BAN

BAN/C

BN/CA

More Classes

Other Links

Ics Part 2 Physics Chapter 3 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