Page 731 - SUBSEC October 2017_Neat

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02238020/CAPE SPEC/MS/2017

Question 1. KC UK XS

(a) The capacitor is connected to the power supply. An electric
field is set up across the plates of the capacitor (1). The 2
plates become charged as electrons are attracted from the
positive plates and simultaneously repelled from the negative
terminal to the negative plate (1)

(b)
E = ½ CV (1) 1
2

2
2
= ½ x 1000 x 1.5 (1)

= 1.13 m J (1)
(c)

2

1

Shape (2)- Increasing portion (1), saturation portion (1)
Correctly labelled axes (1)

Question 1 continued KC UK XS

(d)
(i) 1