Electronic signals that are smoothly varying signals produced by continuously changing the voltage or current in a circuit are
a. digital signals.
b. cathode rays.
c. diode signals.
d. analog signals.

The correct answer is "analog signals".

Explanation:

Digital signal: This signal varies as 0 or 1. It is discrete signal.

Cathode rays: They are the streams of the negatively charged particles.

Diode signals: Diode is a semiconductor device. It changes the alternating signal to the direct signal.

Analog signals: In this signal, the signal is varying by continuously changing the direction voltage or current with time. It is a continuously varying signal.

In the given problem, electronic signals that are varying signals produced by continuously changing the voltage or current in a circuit are analog signals.

Therefore, the correct option is (d).

answer: option c.

explanation:

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