Fig. 10.1 illustrates a lamp and a resistor joined in a circuit.
(a(i))[1]
Find the total resistance of the $3.0\,\Omega$ resistor and the $5.0\,\Omega$ lamp.
(a(ii))[1]
State the reading shown by ammeter Y.
(b)[3]
State and explain how this change affects the current in ammeter X.
(c)[3]
Calculate the resistance of the lamp.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “So, 3.0 + 5.0 = 8.0 Ω” …
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