Question

All the formulas of electricity physics class 10

Answer 1

1. Q=n/e
2. V=IR
3. P=E/T
4. V=W/q
5. R=pL/A
6. I=Q/T
7. P=W/T
8. W=VIt

Answer 2

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$\textbf {All the formulas of class 10 electricity }$

☆ q = +ne

where ,

q = total no. of charges

n = no. of electrons

e = charge of electron

☆ V = W/Q

where ,

V = electrical potential

W = workdone

Q = charge

☆ Potential difference = Va - Vb

= W/Q

=W /IT

☆ I = QT

where ,

I = electric charge

Q = charge

T = time

☆ V = IR

where ,

R = resistence

☆ P = RA / I

where ,

P = resistivity

A =Area of cross section

☆ V = V1 + V2 + V3

V1 = IR1

V2 = IR2

V3 = IR3

=> V = IR1 + IR2 + IR3

=> V = I ( R1 + R2 + R3 )

IF , V = IRs

=> IRs = I ( R1 + R2 + R3 )

=> Rs = R1 + R2 + R3

☆ I = I1 + I2 + I3

ACCOR TO OHMS LAW ...

I1 = V/R1

I2 = V/R2

I3 = V/R3

=> I = V/R1 + V/R2 + V/R3 + ......V/Rn

=> I = V ( 1/R1 + 1/R2 + 1/R3 + ......1/Rn )

if , I = V/Rp

=> 1/Rp = 1/R1 + 1/R2 + /R3 + ......1/Rn

☆ H = VIT

= I^2RT

= V^2T/R

where ,

H = heat

☆ E = VIT

where ,

E = electric energy

☆ P = W/T

where ,

P = Power

now putting ,

W = VIT

=> P = VIT / T

=> P = VI