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CGP EDU Academic Team
Published on: September 12, 2026
If a coil made of conducting wires is rotated between poles pieces of the permanent magnet. The motion will generate a current and this device is called
Text Solution
Verified by ExpertsThe correct answer is:
B
Step 1: Understand the principle of electromagnetic induction, which states that a changing magnetic field can induce an electromotive force (EMF) in a circuit.
Step 2: In this scenario, a coil of conducting wire is rotated in the magnetic field created by permanent magnets. As the coil rotates, the magnetic flux through the coil changes over time.
Step 3: According to Faraday's Law of Induction, the induced EMF $ ext{(E)}$ in the coil is proportional to the rate of change of magnetic flux.
Step 4: The generated current flows when the circuit is closed, thus this device functions as an electric generator.
Conclusion: Since the device generates current from mechanical energy, the correct answer is Option B: An electric generator.
Step 2: In this scenario, a coil of conducting wire is rotated in the magnetic field created by permanent magnets. As the coil rotates, the magnetic flux through the coil changes over time.
Step 3: According to Faraday's Law of Induction, the induced EMF $ ext{(E)}$ in the coil is proportional to the rate of change of magnetic flux.
Step 4: The generated current flows when the circuit is closed, thus this device functions as an electric generator.
Conclusion: Since the device generates current from mechanical energy, the correct answer is Option B: An electric generator.
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