Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are connected in parallel to the electric mains supply. What current is drawn from the line if the supply voltage is 220 V?

Asked by Vishal kumar | 1 year ago |  329

##### Solution :-

Since both the bulbs are connected in parallel, the voltage across each of them will be the same.

Current drawn by the bulb of rating 100 W can be calculated as follows:

$$P = V × I$$

$$I=\frac{P}{V}$$

Substituting the values in the equation, we get

$$I = \frac{100\,W}{220\,V}=\frac{100}{220\,A}$$

Similarly, the current drawn by the bulb of rating 60 W can be calculated as follows

$$I = \frac{60\,W}{220\,V}=\frac{60}{220\,A}$$

Therefore, the current drawn from the line is $$\frac{100}{220}+\frac{60}{220}= 0.727\,A$$

Answered by Shivani Kumari | 1 year ago

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