help me understand the answers to all 5 please? An ideal inductor has only induc
ID: 1556682 • Letter: H
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help me understand the answers to all 5 please?
An ideal inductor has only inductance and no resistance. Answer the following questions about an ideal inductor connected to a DC power source. Circle the correct answer The induced volta across due to heat Lseparation of excess charge ge the inductor is moving charge. [2] ter the DC current reaches its constant value, the inductor stores steady state energy in its magnetic ficld electric field not applicable [3] Assume that the inductor is a coil of wire. Adding more turns of wire increases decreases leaves unchanged the voltage induced across it. [4] An inductor's opposition to charge flow depends on how fast the current changes the magnitude of the current. [5] The current drawn from the DC power source flows clockwise. When the power source is first turned on, the induced current from the inductor flows clockwise counterclockwisExplanation / Answer
(1) the induced voltage is because of the current flowing in an inductor. the current is because of moving charges. so we can say that induced volatge across an inductor is because of moving charge.
(2) inductor stores energy in its magnetic field.
(3)induced volatge= n d(phi)/dt
phi= magnetic flux and n= number of turns . so adding more number of turns of wire increases the voltage induced across it ,
(4) an inductors oppoition to the flow of charge depends on the rate of change of magnetic flux which in turn depends on the "how fast the current changes".
(5) according to Lenzs law ,the direction of induced current is such that it always opposes the source that created it.since the source current is clockwise,so the induced current will be in counterclockwise direction.
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