Question:
all formulas in chapter electricity
Answer:
1. Electric current, I = Q/t Or I=ne/t
2. Electric potential, V=work done/ electric charge
V=W/Q
3. Ohms law-
V=IR or I=V/R
4. R=Ρ(l/A)
5.Electric energy -
W= I2 Rt or VIt or (V2 /R)t
6.Electric Power-
P= VI or I2 R or V2 /R
Where,
Q= electric charge
I= Electric current
t= time
n=number of electrons
e= charge of electron = 1.6×10-19 C
R= resistance
V= Voltage or electric potential
l = length of conducting wire
A= area of cross section of wire
Ρ= resistivity of conducting material
W= work done
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