TS EAMCET20214 Aug 2021Evening ShiftPhysicsMagnetic Effects of CurrentActual

If the number of turns per unit length of a solenoid is doubled, what happens to the magnetic field in the solenoid?

Correct answer

Step-by-step solution

The formula of the strength of magnetic field due to current carrying solenoid in terms of current and number of turns per unit length is, B = μ 0 n i , here n is defined as, N l , here N is the number of turns, if we double the number of turns of solenoid then the strength of the magnetic field also double.

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