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

Two parallel wires carrying currents in the opposite direction.

• Repel each other A
• Attract each other B
• Have no effect upon each other C
• They cancel out their individual magnetic fields. D

Torque on a current carrying coil

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

Magnetism is related to:

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

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

• Series A
• Parallel B
• Both a and b C
• Neither in series nor in parallel 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 Weber is unit of measure of:

• Conductance A
• Electric current B
• Magnitic flux C
• Electric flux D

The sensitivity of galvanometer is given by

• CAN/B A
• C/BAN B
• BAN/C C
• BN/CA D

The magnetic field  inside solenoid is given:

• μ_∘nI² A
• μ_∘nI B
• μ_∘n/1² C
• μ_∘I/n D

If a low resistance is connected parallel to a galvanometer then galvanometer is converted.

• Ammeter A
• Voltammeter B
• Ohmmeter C
• Multimeter D

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

• To accelerate electrons only A
• To focus the electrons only B
• To control the brightness of spot on screen C
• To accelerate and focus the electrons D

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

The conductor experience force, placed in magnetic above:

• Move towards weaker part of field A
• Move towards stronger part of field B
• Remains at rest C
• Move upwards in space 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

The unit of permiability of free space is:

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

Which one of the following resistance is used to convert a Galvanometer into an ammeter.

• High resistance A
• Low resistance in series with galvanometer B
• Shunt C
• High resistance in series with galvanometer 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

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