Question

What will be the current drawn by an electric bulb of 40W when it is connected to a source of 220V ?​

Answer 1

ɢɪᴠᴇɴ :-

• Potential Difference(V) = 220V
• Power(P) = 40W

ᴛᴏ ғɪɴᴅ :-

• Current(I)

Sᴏʟᴜᴛɪᴏɴ :-

We know that ,

→ P = VI

→ 40 = 220 × I

→ I = 40/220

→ I = 0.18A

Hence,

• Current drawn by electric bulb = 0.18A

Answer 2

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What will be the current drawn by an electric bulb of 40W when it is connected to a source of 220V ?

_______________

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✒Given : -

• Power(P) = 40W
• Potential Difference(V) = 220V

✒To Find : -

• Current(I) drawn by an electric bulb = ?

✒Formula Used : -

$\leadsto\sf{{ \small{ \bold{ \bold{ \bold{ \orange{Power=Potential\:Difference\times{Current}}}}}}}}$

✒On Substituting Values : -

$\dashrightarrow\sf{40=220\times{I}}$

$\dashrightarrow\sf{I=\cancel\dfrac{40}{220}}$

$\leadsto\sf{{ \large{ \boxed{ \bold{ \bold{ \green{I=0.18A}}}}}}}$

✒Therefore , Current drawn by Electric bulb is 0.18A ...