derive the formula for the calculation of work done when current flows through a resistor
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let I is = current , V = p.d , w.d = work done , Q =
colomb of charge,
then,
I = Q/T ( T= time taken)
or Q= IT ,
V= w.d/Q
Q= w.d/v
on comparing,
I×T = w.d/V
OR,
H =V×I×T
Now,
R = V/I
V= R×I
Keeping value of v,
H= I( Square )× R× T
HENCE DERIVED
colomb of charge,
then,
I = Q/T ( T= time taken)
or Q= IT ,
V= w.d/Q
Q= w.d/v
on comparing,
I×T = w.d/V
OR,
H =V×I×T
Now,
R = V/I
V= R×I
Keeping value of v,
H= I( Square )× R× T
HENCE DERIVED
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