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

One weber is equal to:

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

The permeability of free space is measured in

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

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

In current carrying long solenoid the magnetic field produced does note depend upon

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

The SI unit of magnetic induction Tesla is equal to

• N-1 Am A
• NA m2 B
• NA-1n2 C
• NA-1m-1 D

Ampere's law is applicable to:

• Circular path A
• Rectangular path B
• To any closed path C
• Nonwe of these D

Weber is the unit of

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

The magnetic force is simply a

• Reflecting force A
• Deflecting force B
• Restoring force C
• Gravitational force D

Torque on a current carrying coil

• τ=IBA cos A
• τ = ILB sinα B
• τ = IBA sinα C
• τ = ILBcosα D

A galvanometer is an electrical instrument used to

• Measure resistance A
• Measure voltage B
• Detect passage of current  C
• None of these D

Magnetism is related to:

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

The dimensions of magnetic flux are

• M¹L^-2T¹A¹ A
• MLT^-2A^-1 B
• ML²T²A^-1 C
• ML²T^-2A^-1 D

The Grid 'G' in cathode ray oscilloscope.

• Accelerate as well as focus electron beam A
• Control no. of electrons beam B
• Is at - Ve potential with respect to cathode. C
• Both d and b  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

The unit of magnetic induction B is

• Coulomb A
• Ampere B
• Coulomb/ampere C
• Weber/m² D

Galvanometer is sensitive when C/BAN is

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