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

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

• NA-1m-1 A
• Nam-1 B
• NA-1 m C
• Na2m-1 D

Sensitivity of a galvanometer can be increased by

• Decreasing the value of torsional couple A
• Decreasing number of turns B
• Decreasing area of plane of coil C
• Decreasing magnetic field 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

A Current flowing towards the reader is denoted by.

• Cross A
• a bracket B
• A dot C
• Positive sign D

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

A battery is used in

• ohmmeter A
• Ammeter B
• Galvanometer C
• Voltemeter 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

If the length of solenoid is doubled but N same, B inside the solenoid becomes.

• Half A
• Doubled B
• One fourth C
• Four times D

The SI unit of E is NC-1 and that of B is Na-1 m-1 then the unit of E/B is.

• ms-2 A
• ms B
• ms^-1 C
• m-1s-1 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

Brightness of screen of CRO controlled by

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

Grid in cathode ray oscilloscope controls.

• Number of electron A
• Temperature of filament B
• Frequency of electron C
• Energy of electrons D

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

• Zero A
• Double B
• One fourth C
• Four times D

The unit of permiability of free space is:

• T.m/A A
• T.m²/A B
• T.m/A² C
• None of these D

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

• Henry A
• Faraday B
• Coloumb C
• Oersted D

The SI Unit of magnetic induction is.

• Weber A
• Tesla B
• Gauss C
• Newton 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