Question

How much energy is transferred when $10A$ current flows through a resistor of $5ohm$ for $30$ minutes?

Answer 1

Step 1: Given

Current through a resistor $I=10A$

Resistance of the resistor $R=5\Omega$

Total time taken $t=30min$

$=\left(30\times 60\right)s$

$=1800s$

Step 2: Calculate the energy

We know that the energy transferred through a circuit is given as,

$E=I^{2}RT$

Upon substituting the values we get,

$E={10}^2\times 5\times 1800$

$=100\times 5\times 18\times 100$

$=9\times {10}^{5}J$

$=900kJ$

Hence, $900kJ$ energy is transferred through the resistor.