Two electric lamps of $100\, W$ and $25\, W$ respectively are joined in parallel to a supply of $200\, V$. Calculate the total current flowing through the circuit.
Two electric lamps of $100\, W$ and $25\, W$ respectively are joined in parallel to a supply of $200\, V$. Calculate the total current flowing through the circuit.
When the lamps are joined in parallel, equivalent power,
$P = P _{1}+ P _{2}=100+25=125 W$
Now, $P = VI ,$ therefore,
$I=\frac{P}{V}=\frac{125}{200}=0.625 A$
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