A bar magnet and a solenoid are kept beside each other. In which of the following cases current will not be produced?
Correct answer: D. When both the magnet and solenoid are moving in the same direction with the same speed
- A. When the magnet is moving towards the solenoid
- B. When the solenoid is moving towards the magnet
- C. When both magnet and solenoid are moving in opposite directions with the same speed
- D. When both the magnet and solenoid are moving in the same direction with the same speed
Explanation
When both magnet and solenoid are moving in the same direction with the same speed, there is no relative motion between the bar magnet and solenoid. Therefore, no current is produced in such cases.
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Scientific reasoning evaluates hypotheses through observations, variables, controls, measurements and experimental results. Questions involve identifying independent and dependent variables, recognising a fair test, interpreting tables or graphs, distinguishing evidence from opinion, and deciding whether data supports, rejects or leaves a hypothesis unresolved.
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