7 (a) Fig. 8.1 shows a 12.0 V battery connected to a resistor and a component X in series.
Fig. 8.1
(i) Identify the component X .
\( \qquad \)
[1]
(ii) The p.d. across the \( 4.0 \Omega \) resistor is 11.3 V .
Calculate
1. the p.d. across component \( X \),
p.d. = .........................................................
[1]
2. the current in the \( 4.0 \Omega \) resistor.
current = \( \qquad \)
[2]
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