alleryCurrents are induced in closed coils by changing:
AMagnetic figures
BMagnetic filings
CMagnetic fields
DMagnetic fluids
Answer & Solution
Correct answer: C. Magnetic fields
1. The coils themselves need not move.
2. Currents were induced in closed coils subjected to changing magnetic fields.
3. So the correct answer is magnetic fields.
_Source: syllabus Physics Part I, Ch 6 'Electromagnetic Induction'_
Keep practising Moving Charges and Magnetism
Browse all Moving Charges and Magnetism questions for CBSE Class 12 (Science), or explore more Physics topics.
Related questions
If the turns N in a galvanometer coil are doubled, voltage sensitivityDoubling the coil turns N in a galvanometer does what to current sensitivity?A 100 ohm, 1 mA galvanometer becomes a 10 V voltmeter. Series resistance?How is a galvanometer converted into an ammeter?The deflection of a moving coil galvanometer is proportional toIn a moving coil galvanometer, what balances the magnetic torque?A moving coil galvanometer gets its radial field usingAmpere suggested that all magnetism arises from