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Question
Physics
Calculate the work done in taking a charge -2 × 10-9 C from A to B via C (in diagram)
Q. Calculate the work done in taking a charge
−
2
×
1
0
−
9
C
from
A
to
B
via
C
(in diagram)
3694
242
Electrostatic Potential and Capacitance
Report Error
A
0.2 joule
B
1.2 joule
C
2.2 joule
D
Zero
Solution:
V
A
=
3
×
1
0
−
2
9
×
1
0
9
×
8
×
1
0
−
3
=
24
×
1
0
8
V
V
B
=
4
×
1
0
−
2
9
×
1
0
9
×
8
×
1
0
−
3
=
18
×
1
0
8
V
Δ
W
=
−
2
×
1
0
−
9
(
−
6
×
1
0
8
)
Δ
W
=
12
×
1
0
−
1
J
Δ
W
=
1.2
J