A unit-step voltage is applied at t = 0 to a series R-L circuit with z – McqOptions

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1.	A unit-step voltage is applied at t = 0 to a series R-L circuit with zero initial condition. Then
A.	it is possible for the current to be oscillatory
B.	the voltage across the resistor at t = 0+ is zero
C.	the voltage across the resistor at t = 0- is non zero
D.	the resistor current eventually falls to zero
Answer» C. the voltage across the resistor at t = 0- is non zero

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