How much more heat is produced, if current is doubled? 1 point twice the original amount thrice the original amount four times the original amount. five times the original amount
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Answer:
Energy (power×time) is measured in Joules and by including time (t) in the power formulae, the energy dissipated by a component or circuit can be calculated.
Energy dissipated = Pt or VI×tasP=VI.
It can also be written as I
2
×RtasV=IR.
Hence, the expression for Power in terms of current is given as P=I
2
RtJ.
Therefore, if I becomes 2I, then P
′
=(2I)
2
R×t=4(I
2
R×t).
Hence, if the current passing through an electric bell is doubled, the heat produced will become four times more.
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