(a)[2]
the frequency associated with the current.
(b)[1]
the average value of the current.
(c)[2]
the root-mean-square current.
(d)[2]
the energy lost in the resistor.
Physics 9702 · AS & A Level · Characteristics of alternating currents
Characteristics of alternating currents — practice question
The sinusoidal current I in a resistor of resistance 450\,\Omega varies with time t as shown in Fig. 11.1. From Fig. 11.1, determine, for t = 0 to t = 30\,\text{ms},