Question Detail

PHY 102 PHY 102 Past Questions Objective Question
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Question

Which of the following methods of magnetising a steel rod will produce the strongest magnet?
Options
A bringing a permanent magnet near to the rod
B holding the heated rod in an N-S direction and tapping strongly
C placing the rod in a solenoid carrying a large direct current
Correct Answer
D stroking the rod with a permanent magnet
Correct Answer

Option C is the correct answer.

Detailed Explanation

A large DC current in a solenoid gives the strongest, most controllable magnetisation.

Hint

A large DC current in a solenoid gives the strongest, most controllable magnetisation.

Question Info

Course: PHY 102
Topic: PHY 102 Past Questions
Type: Objective
Difficulty: Not specified
Question 1578 of 1820
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