Concept Items

In which circuit are all the resistors connected in series?

What is the voltage and current through the capacitor in the circuit below a long time after the switch is closed?

1. 0 V, 0 A
2. 0 V, 10 A
3. 10 V, 0 A
4. 10 V, 10 A

To draw the most power from a battery, should you connect a small or a large resistance across its terminals? Explain.

1. Small resistance, because smaller resistance will lead to the largest power
2. Large resistance, because smaller resistance will lead to the largest power

If you double the current through a resistor, by what factor does the power dissipated by the resistor change?

1. Power increases by a factor of two.
2. Power increases by a factor of four.
3. Power increases by a factor of eight.
4. Power increases by a factor of 16.