Q: Which one of the following expressions has dimensions of energy (here V is the voltage across a resistor of resistance R and I is the current through the resistor, and t is the time)?
(a)V²/I · t
(b)V²/R · t
(c)I²/R · t
(d)I²/V · t
Correct Answer: (b)
The correct answer is (c) 'I²/R · t'. This question from the Science & Technology domain tests knowledge of Physics.