Power Systems | MCQs

Explanation

If the frequency of electricity is doubled, the efficiency of the load decreases.

This is because electrical devices and systems are designed to operate optimally at a specific frequency, and doubling it can disrupt their performance.

Explanation

The transformer works only on an AC supply

because A transformer needs an alternating current that will create a changing magnetic field

Note:

The transformer does not work on DC.

Direct current doesn't have a variable magnetic field