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  4. An energy source will supply a constant current into the load, if its internal resistance is

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Q. An energy source will supply a constant current into the load, if its internal resistance is

NTA AbhyasNTA Abhyas 2020Current Electricity

Solution:

$I=\frac{E}{R + r}$
$I\approx \frac{E}{r}=constant$
where, R=external resistance
r= internal resistance such that $r>>R$