Physics · Magnetic Effects of Electric Current
Consider three points P, Q and S at distances r, 2r and 3r from a straight conductor carrying current I. Which of the following relations is true about the magnitude of the magnetic fields B P , B Q and B S at points P, Q and S, respectively?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B P > B Q > B S✓
- 2B S > B P > B Q
- 3B Q > B S > B P
- 4B P = B Q = B S
Correct answer
B P > B Q > B S
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