(a)[2]
the current's frequency.
(b)[1]
the mean current value.
(c)[2]
the root-mean-square (r.m.s.) current.
(d)[2]
the energy transferred in the resistor.
Physics 9702 · AS & A Level · Characteristics of alternating currents
Characteristics of alternating currents — practice question
The way the sinusoidal current $I$ varies with time $t$ in a resistor of resistance $450\,\Omega$ is shown in Fig. 11.1. Use the information in Fig. 11.1 to determine, over the interval from $t = 0$ to $t = 30\,\text{ms}$.