P $1\mathrm{.}2-2$

The current in a circuit element is $i(t)=4(1-e^{-5t})A$

when $t0$ and $i(t)=0$ when Determine the total

charge that has entered a circuit element for $t0.$

P $1\mathrm{.}2-3$

The current in a circuit element is $i(t)=4sin3tA$ when

$t0$ and $i(t)=0$ when Determine the total charge

that has entered a circuit element for $t0.$

P $1\mathrm{.}3-1$

A constant current of $3\mathrm{.}2mA$ flows through an element.

What is the charge that has passed through the

element in the first millisecond?

P $1\mathrm{.}5-2$

An electric range has a constant current of $10A$

entering the positive voltage terminal with a voltage of

$110V.$ The range is operated for two hours. $($a$)$ Find the

charge in coulombs that passes through the range. $($b$)$

Find the power absorbed by the range.

P $1\mathrm{.}5-3$

A walker's cassette tape player uses four AA batteries in

series to provide $6V$ to the player circuit. The four

alkaline battery cells store a total of $200$ watt$-$seconds

of energy. If the cassette player is drawing a constant

$10mA$ from the battery pack, how long will the

cassette operate at normal power?