Question

A bulb is rated 40 watt and the potential difference is 220v Find the current drawn by it when it is connected to 220v supply .​

Answer 1

Answer:

$\small{ \green{ \boxed{ \bf \: The \: current \: drawn \: by \: the \: bulb \: is \: \: I = 0.18 \: A }}} \:$

Explanation:

Given ,

• Power of the bulb P = 40W
• Potential Difference or voltage V = 220 V

To find :

The current (I) drawn by the bulb .

Solution :

We know that,

$\large \pink{ \boxed{ \bf \: P = VI \: }}$

Now,

$\bf \: \: P = VI \: \: \: \: \: \: \: \\ \bf \implies \:I = \frac{P }{V} \\ \bf \implies \:I = \frac{40}{220} \\ \bf \implies \:I = 0.18 \:A \\ \\ \small{ \green{ \boxed{ \bf \: The \: current \: drawn \: by \: the \: bulb \: is \: \: I = 0.18 \: A }}}$