engineering recuitment BARC Stipendiary Trainee Category II 2023 Mock Test General Science Physics Current Electricity
An electric iron of resistance 20 Ω takes a current of 5 A. The heat development in 30 s is
1
1.5 × 104 J
2
0.4 × 104 J
3
3.5 × 104 J
4
2.4 × 104 J