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Rus_ich [418]
3 years ago
14

An electric iron of resistance 20Ω takes a current of 5A. Calculate the heat developed in 30seconds?

Physics
1 answer:
Komok [63]3 years ago
6 0
<h2>ANSWER:-</h2>

The amount of heat (H) produced is given by the joule’s law of heating as H= Vlt

Where,

Current, I = 5 A

Time, t = 30 s

Voltage, V = Current x Resistance = 5 x 20 = 100V

H= 100 x 5 x 30 = 1.5 x 10⁴ J.

Therefore, the amount of heat developed in the electric iron is 1.5 x 10⁴J.

Please mark me as a BRAINLIST

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