What is CRO and it works? What is voltmeter, ammeter, potentiometer, rectifier and does it works with an example.

Question

Accepted Answer

CRO stands for Cathode Ray Oscilloscope. It is an electronic device used to visualize and analyze electrical signals.

CRO is used to display waveforms and measure voltage, frequency, and time intervals.
It works by generating an electron beam that is deflected by the input signal and displayed on a screen.
CROs are commonly used in electronics, telecommunications, and engineering fields.
Example: A CRO can be used to analyze the waveform of an audio signal to check for distortion or frequency response.
Voltmeter is used to measure voltage, ammeter is used to measure current, and potentiometer is used to measure potential difference or resistance.
Rectifier is an electronic device used to convert alternating current (AC) to direct current (DC). It works by using diodes to allow current flow in only one direction.
Example: A rectifier can be used in a power supply to convert AC voltage from the mains to DC voltage for electronic devices.

Top Nalco Graduate Engineer Trainee (Get) interview questions & answers