Question # 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

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

The effective way to increase the sensitivity of moving coil galvanometer is.

Choose an answer

Increase the area of coil

Increase the number of turn

Increase the magnetic field

Increase the value of constant C

The magnetic flux will be max, For an angle of:

Choose an answer

0°

60°

90°

180°

Magnetism is related to:

Choose an answer

Stationary charges

Moving charges

Stationary & Movingcharges

Law of motion

The galvanometer can be made sensitive by making the factor BAN/C

Choose an answer

Large

Small

Constant

Zero

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

Choose an answer

NA-1m-1

Nam-1

NA-1 m

Na2m-1

Cathode ray oscilloscope works by deflecting a beams

Choose an answer

Neutrons

Protons

Electrons

Positron

The SI unit of magnetic permeability is.

Choose an answer

WbA-1m-1

Wbm-2

WbmA-1

WbAm-1

Torque on a current carrying coil

Choose an answer

τ=IBA cos

τ = ILB sinα

τ = IBA sinα

τ = ILBcosα

An electron enters the magnetic field at right angle from left, B is into paper. The electron will be deflected.

Choose an answer

upward

To ward right

Down ward

Toward left

Shunt resistance is

Choose an answer

Low resistance

Zero resistance

High resistance

Impedance

The unit of magnetic induction B is

Choose an answer

Coulomb

Ampere

Coulomb/ampere

Weber/m²

Brightness of screen of CRO controlled by

Choose an answer

Grid

Filament

Anode

Cathode

The unit of Magnetic flux is called.

Choose an answer

weber

weber/m²

NM^-1A^-1

None of above

A positive charge is moving towards an observer, The direction of magnetic induction will be.

Choose an answer

Toward right

Anti clockwise

Clockwise

Toward left

The magnetic field inside solenoid is given:

Choose an answer

μ_∘nI²

μ_∘nI

μ_∘n/1²

μ_∘I/n

In order to measure potential difference voltmeter is always connected in.

Choose an answer

Series

Parallel

Both a and b

Neither in series nor in parallel

A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is.

Choose an answer

Speed

Kinetic energy

Path of motion

angular velocity

The function of three anodes a C.R.O is

Choose an answer

To accelerate electrons only

To focus the electrons only

To control the brightness of spot on screen

To accelerate and focus the electrons

The name of the scientist who noted that a compass needle was deflected when placed near the current carrying conductor

Choose an answer

Henry

Faraday

Coloumb

Oersted

More Classes

Other Links

Physics Fsc Part 2 Chapter 3 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

Choose an answer

Choose an answer

Choose an answer