Derive an expression for electric energy consumed in a device in terms of v I and t where v is the potential difference applied to it ,I is the current drawn by it and t is the time for which the current flows
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Electric energy = V×I×T
rajeshspillai71:
all of them need the steps and answer
they dont need only the answer
pls post with full steps because the question itself says to derive
an expression for electric energy consumed in a device in terms of v I and t where v is the potential difference applied to it ,I is the current drawn by it and t is the time for which the current flows
Answered by
2
Answer:
Energy =( V²/R²)t
We know that work done ,
W=QV
.•. P=W/t
now,
P=QV/t
V=IR
P=(Q/t)I²R
=I²R
Energy =P×t
=I²R×t
=(V²/R²)×R×t
=(V²/R)t
energy=(V²/R)t
where,V=voltage
R = resistance
t=time
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