The formula for electrical energy is: \[ E = V \times Q \] where:
\( E \) is the energy in joules,
\( V \) is the potential difference in volts,
\( Q \) is the charge in coulombs.
Substituting the given values: \[ E = 3 \, \text{V} \times 4 \, \text{C} = 12 \, \text{Joules} \]
Thus, the correct answer is 12 joules.The correct option is (D): \(12\) joules
Assertion (A): In the common domestic circuit, the earth wire is connected to a metallic plate buried deep inside the earth.
Reason (R): Earth wire ensures that any leakage of current to the metallic body of the appliance keeps its potential to that of the earth, so the user may not get a severe electric shock.
