The wire in a solenoid of 250 turns has a resistance of 3 Ω. (a) How much is the current when the coil is connected to a 6-V battery? (b) Calculate the ampere-turns of mmf.

Question

The wire in a solenoid of 250 turns has a resistance of 3 [latex]\Omega[/latex]. (a) How much is the current when the coil is connected to a 6-V battery? (b) Calculate the ampere-turns of mmf.

Accepted Answer

[latex]a. I=\frac{V}{R}=\frac{6 V}{3\Omega} =2A[/latex]
[latex]b. mmf=I imes N=2A imes 250t =500 A.t[/latex]

Question 11.3: The wire in a solenoid of 250 turns has a resistance of 3 Ω....

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