Voltage Regulation | MCQs

Explanation

Potential divider is a circuit that gives us continuously varying potential.

Examples of the potential dividers are Rheostat and Potentiometer

Explanation

The best description of a Zener diode is: "It operates in reverse region."

Explanation

• Transformers are used to change AC voltage levels,
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• AC stands for 'alternating current' which means the current constantly changes direction.
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• concept about transformer:
• A transformer is a device that transfers electric energy from one alternating-current circuit to one or more other circuits, either increasing (stepping up) or reducing (stepping down) the voltage