Electrical Engineering XYZ MCQs
SI unit of frequency is:
- Henry
- Hertz
- Seconds
- Farads
Correct answer: 2. Hertz
Explanation:
Frequency is a measure of how often something occurs in a given time period. In physics, particularly in the context of waves and oscillations, frequency refers to the number of cycles or occurrences of a repeating event per unit of time. The unit used to measure frequency is the Hertz (Hz), named after the German physicist Heinrich Hertz.
A Hertz represents one cycle per second. It is commonly used to measure the frequency of various phenomena, including electromagnetic waves (such as radio waves, light waves), sound waves, and vibrations.
The other options provided in the MCQ are units of different physical quantities:
- Henry is the unit of inductance, representing the amount of inductance in an electrical circuit.
- Seconds (s) is the unit of time, representing the duration or interval.
- Farads (F) is the unit of capacitance, representing the ability of a capacitor to store electric charge per unit voltage.