(a(i))[2]
Refer to Fig. 6.1 to give the value of $t_1$.
(a(ii))[1]
Refer to Fig. 6.1 to give the peak voltage $V_0$.
(a(iii))[1]
Refer to Fig. 6.1 to give the root-mean-square voltage $V_{\text{rms}}$.
(a(iv))[1]
Refer to Fig. 6.1 to give the mean voltage $\langle V \rangle$.
(b)[2]
The alternating supply is linked in series with a resistor of resistance $2.4\ \Omega$. Calculate the mean power dissipated in the resistor.