Question:
The device constructed based on the laws of electromagnetic induction is:
The device constructed based on the laws of electromagnetic induction is:
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Electric generators produce emf by electromagnetic induction—mechanical to electrical energy conversion.
Updated On: Jun 3, 2025
- Galvanometer
- Electric motor
- Ohm meter
- Electric generator
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The Correct Option is D
Solution and Explanation
Electromagnetic induction refers to the generation of an electromotive force (emf) in a conductor due to a changing magnetic field.
- Electric generator works on the principle of electromagnetic induction by converting mechanical energy into electrical energy via relative motion between a magnet and a coil.
- Galvanometer detects current but is not primarily based on electromagnetic induction; it operates using the magnetic effect of current.
- Electric motor converts electrical energy into mechanical energy using magnetic forces, not induction for emf generation.
- Ohm meter measures resistance using the flow of current, unrelated to electromagnetic induction.
Therefore, the device based on electromagnetic induction is the electric generator.
- Electric generator works on the principle of electromagnetic induction by converting mechanical energy into electrical energy via relative motion between a magnet and a coil.
- Galvanometer detects current but is not primarily based on electromagnetic induction; it operates using the magnetic effect of current.
- Electric motor converts electrical energy into mechanical energy using magnetic forces, not induction for emf generation.
- Ohm meter measures resistance using the flow of current, unrelated to electromagnetic induction.
Therefore, the device based on electromagnetic induction is the electric generator.
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