Physics · Electromagnetic Induction
A spherical insulating ball and a spherical metallic ball of the same size and mass are dropped from the same height above the Earth's surface. Choose the correct statement out of the following, considering the effects of electromagnetic induction (eddy currents) due to Earth's magnetic field (assume negligible air friction):
- 1The time taken by them to reach the Earth's surface will be independent of the properties of their materials.
- 2The insulating ball will reach the Earth's surface earlier than the metal ball.✓
- 3Both will reach the Earth's surface simultaneously.
- 4The metal ball will reach the Earth's surface earlier than the insulating ball.
Correct answer
The insulating ball will reach the Earth's surface earlier than the metal ball.
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