The heat produced by a $100\, watt$ heater in $2$ minute will be equal to
The heat produced by a $100\, watt$ heater in $2$ minute will be equal to
- A
$12 \times {10^3}\,J$
- B
$10 \times {10^3}\,J$
- C
$6 \times {10^3}\,J$
- D
$3 \times {10^3}\,J$
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The three resistance of equal value are arranged in the different combinations shown below. Arrange them in increasing order of power dissipation.
The three resistance of equal value are arranged in the different combinations shown below. Arrange them in increasing order of power dissipation.
- [IIT 2003]
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- [AIEEE 2012]
If power in external resistance $R$ is maximum then
$(i) R = r$ $(ii)$ Power in $R$ is $\frac{{{E^2}}}{{4R}}$
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