Physics · Magnetism
Which set of factors directly affects the strength of the magnetic field inside a long, current-carrying air-cored solenoid?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The atmospheric pressure and ambient room temperature
- 2The material thickness of the external power switch only
- 3The total length of the connecting circuit wires and their insulation colour
- 4Number of turns per unit length and the magnitude of the current✓
Correct answer
Number of turns per unit length and the magnitude of the current
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