At the moment $=0,$ a $22\mathrm{.}0$ battery is connected to a $5\mathrm{.}00$ coil and a $6\mathrm{.}00$

resistor.

Immediately thereafter, how does the potential difference across the resistor compare to

the emf across the coil? $($Write your answers in V$.)$

Answer the same question about the circuit several seconds later. $($Write your answers in

V$.)$

Is there an instant at which these two voltages are equal in magnitude?

If so$,$ when? Is there more than one such instant? $($Write all possible times in $$ as a

comma$-$separated list. If there are no such instants, Write NONE.$)$

After a $3\mathrm{.}20$ current is established in the resistor and coil, the battery is suddenly

replaced by a short circuit. Answer questions $($a$)$ and $($b$)$ again with reference to this new

circuit. $($Write your answers in V$.)$