Question

important formula electricity for class 10

Answer 1

d= volume of the oil drop/ area of the film

 

= 4/3 *pi* (0.025cm)^3/(pi* (10 cm)^2

 

= 2.08X10^-7 cm

Answer 2

Some important formulas ate:

I=Q/t

V=IR

R=R1+R2

1/R=1/R1+1/R2

P=VI

H=I^2Rt

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