My Learning Cart
?
Categories
Account

A loop of wire is rotated in a uniform magnetic field. What is the effect on the

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: A loop of wire is rotated in a uniform magnetic field. What is the effect on the induced current? (2019)

Options:

  1. It remains constant
  2. It reverses direction
  3. It increases
  4. It decreases

Correct Answer: It reverses direction

Exam Year: 2019

Solution: 

As the loop rotates, the angle between the magnetic field and the normal to the loop changes, which causes the direction of the induced current to reverse periodically.

A loop of wire is rotated in a uniform magnetic field. What is the effect on the

Practice Questions

Q1
A loop of wire is rotated in a uniform magnetic field. What is the effect on the induced current? (2019)
  1. It remains constant
  2. It reverses direction
  3. It increases
  4. It decreases

Questions & Step-by-Step Solutions

A loop of wire is rotated in a uniform magnetic field. What is the effect on the induced current? (2019)
  • Step 1: Understand that a loop of wire is placed in a magnetic field.
  • Step 2: Recognize that when the loop rotates, the position of the loop changes.
  • Step 3: Know that the magnetic field has a direction, and the loop has a normal (an imaginary line perpendicular to the surface of the loop).
  • Step 4: As the loop rotates, the angle between the magnetic field and the normal to the loop changes.
  • Step 5: Remember that a changing angle in a magnetic field can induce an electric current in the wire.
  • Step 6: Realize that when the angle changes, the direction of the induced current also changes.
  • Step 7: Conclude that the induced current reverses periodically as the loop continues to rotate.
  • Electromagnetic Induction – The process by which a changing magnetic field induces an electromotive force (EMF) in a conductor.
  • Faraday's Law – The law stating that the induced EMF in a circuit is proportional to the rate of change of magnetic flux through the circuit.
  • Lenz's Law – The principle that the direction of induced current will oppose the change in magnetic flux that produced it.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks