Science
Equations
N
Neper
n
=
ln
(
I
1
I
2
)
=
ln
(
P
1
P
2
)
Newton's law of gravitation
F
=
G
m
1
m
2
r
2
Newton's Rings
x
=
m
λ
R
for
dark
rings
x
=
(
m
+
1
2
)
λ
R
for
bright
rings
Newton's Second Law of Motion
F
=
dmv
dt
=
ma
O
Ohm's Law
V
=
IR
Organ Pipes - Open Pipe
f
=
f
0
(
m
+
1
)
Organ Pipes - Closed at One End
f
=
f
0
(
2
m
+
1
)
P
Parallelogram, Area of
A
=
x
h
Parallel Resistance
1
R
=
1
R
1
+
1
R
2
+
·
·
·
Pendulum, Simple Harmonic Motion
T
=
2
π
l
g
Photoelectric Effect
hf
=
eV
Potential
V
=
W
Q
0
V
=
IR
Potential Due to Charge
V
=
q
4
πε
0
r
Potential Energy
E
P
=
mgh
Potential Energy, Simple Harmonic Motion
V
=
1
2
m
ω
2
x
2
Power
P
=
V
I
=
V
2
R
=
I
2
R
Power
P
=
d
W
d
t
P
=
F
.
v
Power (Electric)
W
=
VI
W
=
I
2
R
W
=
V
2
R
Pressure
P
=
F
A
Pressure in a Liquid
P
=
ρ
g
h
Principle Specific Heats of a Gas
γ
=
c
p
c
v
Prism, Volume of
V
=
B
h
Pyramid, Volume of
V
=
1
3
B
h
Q
Quantum Energy
E
=
hf
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