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

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

real, smaller and upside-down.   so the answer should be b.