[amp_mcq option1=”Square conductors” option2=”Circular conductors” option3=”Rectangular conductors” option4=”None of the above” correct=”option2″]
The correct answer is: B. Circular conductors
Multi-core cables generally use circular conductors because they are more efficient in terms of space and weight. Circular conductors also have a lower resistance than other shapes, which means that they can carry more current without overheating.
Square conductors are less efficient in terms of space and weight, and they also have a higher resistance than circular conductors. Rectangular conductors are somewhere in between circular and square conductors in terms of efficiency and resistance.
None of the above is not a correct answer because it does not specify a particular shape of conductor.