Eddy currents are used in:
1. Induction furnace
2. Electromagnetic brakes
3. Speedometers
4. All of these
I: | A small magnet takes a longer time in falling into a hollow metallic tube without touching the wall. |
II: | There is an opposition to motion due to the production of eddy currents in a metallic tube. |
Choose the correct option for the above statements:
1. | Both I and II are True and II is the correct explanation for I. |
2. | Both I and II are True and II is not the correct explanation for I. |
3. | I is True but II is False. |
4. | I is False but II is True. |