Question

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

Answer 1

ɢɪᴠᴇɴ :-

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

ᴛᴏ ғɪɴᴅ :-

• Current(I)

Sᴏʟᴜᴛɪᴏɴ :-

As we know that

→ P = VI

→ 40 = 220 × I

→ I = 40/220

→ I = 0.18 A

Hence,

• Current (I) drawn by electric bulb is 0.18A

Answer 2

Answer :

• The current , I drawn will be 0.18 Amperes

Given :

• Electric bulb of 40 W when it is connected to source of 220 V

To Find :

• Current drawn

Solution :

Power , P = 40 W

Potential difference , V = 220 V

Current , I = ? A

We know that , " Power is defined as the product of potential difference and current "

⇒ P = VI

⇒ 40 = 220 * I

⇒ I = 0.18 A