2nd Year Physics Chapter 14 Online MCQ Test for 12th Class Physics Chapter 14 (Electromagnetism)

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

• No unit A
• m^-1 B
• m^-2 C
• m-3 D

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

• Perpendicular to field A
• Parallel to field B
• At an angle of 60 ^o to the field C
• None of these D

Magnetic flux density is measured in

• Weber A
• Weber/m2 B
• Tesla -m C
• Gauss D

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

• Large A
• Small B
• Constant C
• Zero D

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

1 tesla =

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

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

• 0° A
• 60° B
• 90° C
• 180° D

Galvanometer is sensitive when C/BAN is

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

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

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

Brightness of screen of CRO controlled by

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

In current carrying long solenoid the magnetic field produced does not depend upon.

• The radius of solenoid A
• Number of turns per unit length B
• Current flowing through solenoid C
• All of the above D

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

• Toward right A
• Anti clockwise B
• Clockwise C
• Toward left D

The anodes in cathode ray oscilloscope.

• Control number of waves A
• Control brightness of sept formed B
• Accelerate as well as focus beam C
• Negative potential w.r.t to chithode D

Which one has the least resistance.

• Galvanometer A
• Ammeter B
• Ohm meter C
• Volta meter D

A device used for detection of current is called.

• Inductor A
• Voltmeter B
• Capacitor C
• Galvanometer D

When a charge is projected perpendicular to a uniform magnetic field, tis path is

• Spiral A
• Helix B
• Ellipse C
• Circular D

A moving charge is surrounded by:

• 2 Fields A
• 3 Fields B
• 4 Fields C
• None of these D