V
simple harmonic motion a = -ω2x
velocity of particle in s.h.m. v = v cosωt
o
( )
v = ±ω x2 − x2
o
Q
electric potential V =
4πε r
ο
capacitors in series 1/C = 1/C + 1/C + ....
Question
Physics
Edexcel2023
V = 0
V
r ms √2
E =
d
I
I = 0
Electric potential r ms √2
Q
V =
4πε r
Question
Physics
Edexcel2022
V = 0
V
r ms √2
E =
d
I
I = 0
Electric potential r ms √2
Q
V =
4πε r
Question
Physics
Edexcel2021
The graph shows how a potential difference (p.d.) varies with time.
p.d. / V
Question
Physics
Edexcel2021
V = 0
V
r ms √2
E =
d
I
I = 0
Electric potential r ms √2
Q
V =
4πε r
Question
Physics
Edexcel2020
The graph shows how an electric potential V varies with distance x.
V
x
Which of the following shows the corresponding variation of electric field strength E
with x?
E E
Question
Physics
Edexcel2020
Sketch a graph to show how the potential at point Y varies with time.
(3)
..................................................................................................................................................................................................................................................
..................................................................................................................................................................................................................................................
V
/
laitnetoP
PMT
Question
Physics
Edexcel2020
0 V
S
Question
Physics
Edexcel2020
V = 0
V
r ms √2
E =
d
I
I = 0
Electric potential r ms √2
Q
V =
4πε r
Question
Physics
CAIE2016
The centres of the spheres are separated by a distance of 50 cm. Point P is at a distance x
from the centre of sphere A along the line joining the centres of the two spheres.
The variation with x of the electric potential V at P is shown in Fig. 6.2.
V/V 900
800
700
600
500
400
300
200
Question
Physics
CAIE2016
f v
s
Doppler effect f =
o v ± v
s
Q
electric potential V =
4(cid:83)(cid:72)r