Physics · May / June 2021 · Paper 42 · Question 9
0625
As printed in the paper
Show the answer and mark scheme
9(a)[2]
anti-clockwise arrow labelled (conventional) current somewhere in circuit
electron (flow) arrow opposite to (conventional) current
9(b)[3]
Q = It in any form or (Q =) It OR 13 × 1
(Q = It =) 13 × 1 (= 13 C)
(n = 13 / 1.6 × 10–19 =) 8.1 × 1019
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