Which arrangement will result in the greatest induced current in a wire loop?
Moving the loop quickly into a strong magnetic field
By Faraday's law of electromagnetic induction, the induced EMF (and hence current) is proportional to the rate of change of magnetic flux linked with the loop.
Moving the loop quickly into a strong magnetic field produces the largest and fastest change in flux, so it induces the greatest current.
Hence, this is the correct answer.
Similar Questions
A single-turn coil of radius R produces a magnetic field B at its centre. If the same wire is wound into a coil of n turns (each of radius R/n) carrying the same current I, what will be the value of the new field at the centre?
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In Fleming's Left Hand Rule, which finger represents the direction of the magnetic field?
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Important Questions from Magnetism
- The magnetic field around a straight current-carrying conductor:
Magnetic field is a quantity that has___________________ .
- The right-hand thumb rule is used to find which of the following?
- How are the magnetic field lines arranged inside a current-carrying solenoid?
- What does it mean when magnetic field lines are drawn closer together in a diagram?
