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MCQ Questions for Class 10 Magnetic Effect of Electric Current Question 10. The strength of each of magnet reduces to half when it cut along its length into the equal parts magnetic field strength of a solenoid. Polarity of solenoid can be determined by (a) use of compass needle (b) Right hand thumb rule (c) fleming left hand rule (d) either (a) or (b)

MCQ Questions for Class 10 Magnetic Effect of Electric Current Question 10. The strength of each of magnet reduces to half when it cut along its length into the equal parts magnetic field strength of a solenoid. Polarity of solenoid can be determined by
(a) use of compass needle
(b) Right hand thumb rule
(c) fleming left hand rule
(d) either (a) or (b)

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
2 years ago
Answer: d Explanation: (d) both (a) and (b) can be use to determine the polarity of solenoid.

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