Question

An electric iron of resistance 20ohm takes a current of 5A. calculate the heat developed in 30sec.​

Answer 1

Answer:

H= I²Rt

H= (5)²× 20×30

= 25×20×30

=15000

Answer 2

$\huge \mathfrak \pink{Answer}$

$\sf \tt \orange{H = I² × R × t}$

$\sf \tt \blue{H \: = 5 ^{2} \times 20 \times 30}$

$\sf \tt \green{H \: = 25 \times 20 \times 30}$

$\sf \tt \purple{H = 1500 \: joules}$

$\sf \tt \red{Hopes \: its \: helps \: you \: }$