Question

A resistor and an ideal inductor are connected in series to an ideal battery having a constant terminal voltage V 0. (a) At the moment contact is made with the battery, the voltage across the resistor is

Answer 1

the voltage across the resistor is V= 0

Step-by-step explanation:

The correct answer is zero.

The answer is zero because the inductor acts as open circuit.

`i= i_0[1-e^{-(t)/(\tau) }]`

i_o= maximum current

\tau= L/R= time constant

i= current at any instant

`V= V_0[1-e^{-(t)/(\tau) }]`

at t=0 at the moment when contact is made

V=V_o[1-1]

⇒V= 0 V