Question

An electric bulb of 70 W power is connected on 280 V mains. Write the current
through the bulb.
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Answer 1

Answer:

4 A

Explanation:

Given : P1= 70W and V=280V To find :I =? solution: P = VI ; P1= V I ; 70= 280×I ; I= 70/280=4 . Thus current flowing bulb is 4A