Electric Toothbrush - Recharges via mutual induction

1
Electric Toothbrush - Recharges via mutual
induction
2
Resistor opposes motion (current), like
friction Inductor opposes change in motion,
like inertia
3
Which curve shows the current after switch s1 is
closed?
B
Lets calculate
4
Which curve shows the voltage drop across the
inductor after S1 is closed?
C
5
Which curve shows the voltage drop across the
resistor after S1 is closed?
B
6
After reaching a steady current, S1 is opened and
S2 is closed, simultaneously. What curve shows
the voltage drop across the resistor vs time?
C
7
After reaching a steady current, S1 is opened and
S2 is closed, simultaneously. What curve shows
the voltage drop across the inductor vs time?
D