Question

An electric bulb of resistance 80 ohm is connected to main supply of 220 volts. Find the power of the current ?

Answer 1

Answer:

605 watt

Explanation:

Given that ;

Resistance of electric bulb = 80

Voltage = 220 volts

Using Ohm's law -

V = I R

⇒ 220 = I × 80

⇒ I = $\frac{220}{80}$

⇒ I = 2.75 Amperes

Now, we know that -

Power is given by the product of electric current and voltage.

⇒ Power = I × V

⇒ Power = 2.75 × 220

⇒ Power = 605 Watt

Hence, the power is 605 watt.

Answer 2

Answer:

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