Question

The energy dissipated by the heater is E. When the time of operating the heater is doubled, the energy dissipated is *
correct answer ?​

Answer 1

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.

Answer 2

Answer:

E = Pt

E '  = P ( 2t )

E ' = 2Pt

ENERGY IS DOUBLED

HOPE IT HELPS U