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प्रश्न
What happens when the current in a nearby solenoid coil is switched on or off?
विकल्प
Electricity and magnetism become separate phenomena
The coil becomes a wireless charger
A current is produced by electromagnetic induction
The solenoid becomes a magnetic compass needle
MCQ
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उत्तर
Switching current in a nearby solenoid coil on or off changes its magnetic field. That change can induce a current in a nearby conductor or coil.
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