Which of the following instruments is used to measure and analyze the frequency of an electrical signal?
A. Ammeter
B. Multimeter
C. Function generator
D. Spectrum analyzer
Answer:D
Which of the following instruments is used to measure and analyze the frequency of an electrical signal?
A. Ammeter B. Multimeter C. Function generator D. Spectrum analyzer
Explanation: A spectrum analyzer is an instrument used to measure the frequency spectrum of an electrical signal, which can help identify its components and characteristics.