Question 30
Question 30 of 40
Question image for Q30
You can solve this MCQ to see its answer, but your attempt won't be logged unless you login
No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
5. Work, energy and power
5.1. Energy conservation

recall and apply the principle of conservation of energy

9. Electricity
9.2. Potential difference and power

define the potential difference across a component as the energy transferred per unit charge