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Magnetic Effect of Current Physics - Magnetic Effect of Current

Jharkhand Board (JAC) - STD 12 Science - Physics (Jharkhand - English Medium). 356 questions in this chapter.

Question types

Magnetic Effect of Current question types

356 questions across 1 question group — pick any mix to generate a Physics paper with step-by-step answer keys.

356
Questions
1
Question groups
5
Question types
Sample Questions

Magnetic Effect of Current questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1M.C.Q (1 Marks)1 Mark
Assertion : A direct current flows through a metallic rod, produced magnetic field only outside the rod.
Reason : There is no flow of charge carriers inside the rod.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • ✓
    If the assertion and reason both are false.

Answer: D.

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Q 2M.C.Q (1 Marks)1 Mark
Assertion : A current I flows along the length of an infinitely long straight and thin walled pipe. Then the magnetic field at any point inside the pipe is zero.
Reason : $\oint \vec{B} \cdot d \vec{l}=\mu_0 I$
  • ✓
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.

Answer: A.

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Q 3M.C.Q (1 Marks)1 Mark
Assertion : If two long wires, hanging freely are connected to a battery in series, they come closer to each other.
Reason : Force of attraction acts between the two wires carrying current.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • ✓
    If the assertion and reason both are false.

Answer: D.

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Q 4M.C.Q (1 Marks)1 Mark
Assertion : If a charged particle is moving on a circular path in a perpendicular magnetic field, the momentum of the particle is not changing,.
Reason : Velocity of the particle in not changing in the magnetic field.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • ✓
    If the assertion and reason both are false.

Answer: D.

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Q 5M.C.Q (1 Marks)1 Mark
Assertion : The magnetic filed at the ends of a very long current carrying solenoid is half of that at the center.
Reason : If the solenoid is sufficiently long, the field within it is uniform.
  • A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • ✓
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • C
    If assertion is true but reason is false.
  • D
    If the assertion and reason both are false.

Answer: B.

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