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A potential difference of 220 V is appli...

A potential difference of 220 V is applied across a resistance of 440 `Omega` in an electrical appliance. Calculate the current drawn and heat energy produced in 20 seconds.

Text Solution

Verified by Experts

V=220 V
R = 440 `Omega`
1=?
H =?
V= IR
`I = (V)/(R)`
`=(220)/(440)`
`=(1)/(2) = 0.5 A`
I =0.5
`H = I^(2) Rt`
`=(0.5)^(2) xx440xx20`
H =2200 J
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