Mathematics · Magnetic Effects of Electric Current - Numerical
The magnetic field inside a long straight solenoid carrying current I is B. Keeping all other parameters constant, what will be the magnetic field if the current flowing through the solenoid is halved?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B2✓
- 2B4
- 3B
- 42B
Correct answer
B2
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