Question

Calculate heat produced in a $5\Omega$ resistor in $10s$ when a current of $2A$ flows through it?

• A. $2J$
• B. $10J$
• C. $20J$
• D. $100J$
• E. $200J$

Answer 1

Answer: (E)

$200J$

Given : $R=5\Omega$ $t=10$ s $I=2A$

Heat produced $H=I^{2}Rt=2^2\times 5\times 10=200J$