Second Year Physics Chapter 14 Online MCQ Test for 2nd Year Physics Chapter 14 Electromagnetism Preparation

The brightness of the spot of CRO screen is controlled by.

• Anode A
• Cathode B
• Grid C
• Deflecting plates D

The torque in the coil can be increased by increasing:

• No. of turns A
• Current and magnetic field B
• Area of coil C
• All of the above D

If an electron is prijected in a magnetic field with velocity V, it will experience a force

• 
  A
• 
  B
• 
  C
• 
  D

Magnetic lines of force are.

• Imaginary A
• Real B
• Perpendicular C
• In phase with electric lines of force D

Weber is the unit of

• Magnetic flux A
• Permeability B
• magnetic force C
• None of above D

Brightness of screen of CRO controlled by

• Grid A
• Filament B
• Anode C
• Cathode D

The unit of Magnetic flux is called.

• weber A
• weber/m² B
• NM^-1A^-1 C
• None of above D

1 tesla =

• 1 MAm^-1 A
• 1NA^-1m B
• 1NA^-1m^-1 C
• None of above D

The sensitivity of galvanometer directly depends upon

• Magnetic field A
• Area of coil B
• Both a and b C
• None of a, b, c D

Galvanometer is sensitive when C/BAN is

• zero A
• Large B
• small C
• Negative D

The field is strong and uniform.

• Inside the solenoid A
• Surrounding of solenoid externally B
• Perpendicular to solenoid C
• All of above D

Magnetism is related to:

• Stationary charges A
• Moving charges B
• Stationary & Movingcharges C
• Law of motion D

One weber is equal to:

• N.A ²/m A
• N.m²/A B
• N.A/m C
• N.m/A D

• 
  A
• 
  B
• 
  C
• None of the above D

The permeability of free space is measured in

• wb A/m A
• Am/wb B
• wb/Am C
• m/wbA D

The vector sum of electric force and magnetic force is called:

• Deflecting force A
• Lorentz force B
• Newton force C
• Faraday's force D

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

• upward A
• To ward right B
• Down ward C
• Toward left D