Which of the following statement is true ? The current flows though an capacitor
ID: 2990699 • Letter: W
Question
Which of the following statement is true?
The current flows though an capacitor can not be changed in zero time.
An inductor can not store energy if the voltage across the inductor is zero.
An inductor is a open circuit to DC.
The current flows though an inductor can not be changed in zero time.
A.The current flows though an capacitor can not be changed in zero time.
B.An inductor can not store energy if the voltage across the inductor is zero.
C.An inductor is a open circuit to DC.
D.The current flows though an inductor can not be changed in zero time.
Explanation / Answer
D is correct
1. inductor opposes the sudden change of current through it.and capacitor opposes the sudden change of voltage through it.
2. inductor store energy in magnetic form(i.e current) and capacitor stores energy in electrical form(voltage)
hence inductor cannot store energy only if current through it is zero.
3. inductor acts as short circuit to D.C and capacitor as open circuit.
from above it is clear that D is true
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