Physics 2011 JAMB Past Questions - Question 47: In measuring high frequency a.c. the instrument used is the

Correct Answer

B

Explanation

In measuring high-frequency alternating current (AC), the instrument typically used is an oscilloscope. An oscilloscope, often referred to as an "oscillograph" or simply a "scope," is a specialized electronic test instrument that allows you to visualize and measure AC waveforms. It provides a graphical representation of the voltage as a function of time.oscilloscope. An oscilloscope is a device used to visualize and measure electrical signals. It can display waveforms of varying frequencies and voltages on a screen, allowing users to analyze and measure the characteristics of the signal. Oscilloscopes are commonly used in electronics, telecommunications, and other fields to measure high-frequency AC signals accurately.

Oscilloscopes are capable of displaying high-frequency AC signals with a wide range of frequencies, making them essential tools for various applications, including electronics, telecommunications, and RF (radio frequency) analysis. They can also measure various parameters of the AC waveform, such as frequency, voltage amplitude, phase, and distortion, which is crucial for understanding and troubleshooting high-frequency AC circuits and signals.