a solenoid of lenght 100cm ins wound uniformly with 10000 turns of wire .It carries current of 4A.what is the value of following ? what is a magnatic field on the axis at the end
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Ответ:
0.4 A
Explanation:
From the question,
Electric power = Voltage×current
P = VI Equation 1
Make I the subject of the equation
I = P/V Equation 2
Given: P = 96 J/s, V = 230 V.
Substitute into equation 2
I = 96/230
I = 0.4 A.
Hence the current is 0.4 A