[amp_mcq option1=”fracture” option2=”Silver” option3=”Steel” option4=”Aluminium E. Copper” correct=”option3″]
The correct answer is copper. Copper is a good conductor of electricity and heat, and it is also relatively easy to work with. It is also relatively inexpensive, making it a cost-effective choice for windings.
Silver is also a good conductor of electricity, but it is more expensive than copper. Steel is not a good conductor of electricity, and it is also difficult to work with. Aluminum is a good conductor of electricity, but it is more likely to fracture than copper.
Therefore, copper is the best choice for windings of electrical machines.