Answer:
a. zero b. V₀
Explanation:
This is because the total voltage V₀ = iR + Ldi/dt at the moment the contact is made, i = 0 and di/dt is high, so all the voltage goes across the inductor and there is no voltage across the resistor.
a. So the voltage across the resistor at the moment the contact is made is zero. Since V = iR = 0 × R = 0
b. So the voltage across the inductor at the moment the contact is made is
V₀ = iR + Ldi/dt = 0 + Ldi/dt = Ldi/dt
V₀ = Ldi/dt
