Download The diagram shows a rigidly-clamped straight horizontal current

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Transcript
(b)
straight line (1)
intercept, upward slope (1)
(2)
[8]
8
9
10
11
12
B
[1]
C
[1]
B
[1]
B
[1]
(a)
gravity or force acts towards centre (1)
force acts at right angles to velocity or direction of motion
[or velocity is tangential] (1)
no movement in direction of force (1)
no work done so no change of kinetic energy so no change in speed (1)
3
(b)
(i)
B = (562 + 172)½ = 59 μT (1)
(ii)
tanθ =
(1)
θ = 17° (1) (± 1°)
(iii)
rod sweeps out or cuts (magnetic) flux
[or rod cuts field] (1)
4
[7]
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