Question

When 5V, 9V, 12V were selected in Relay Test software, did the 3 red LEDs light up properly? What was the power supply output DC voltage for each selected voltage?

a) Yes, all 3 red LEDs lit up properly.
b) No, only some red LEDs lit up.
c) No, none of the red LEDs lit up.

Answer 1

The question revolves around checking LED functionality in a relay test setup and understanding the concept of emf and potential difference in a circuit.

Step-by-step explanation:

The question is concerning the verification of functionality in a Relay Test software and the measurement of power supply output DC voltage. When 5V, 9V, 12V were selected, there are different potential outcomes for the lighting of the red LEDs, which rely on the correct functioning of the relay circuit and the LEDs themselves and whether the power supply is outputting the correct voltage. In a setup where multiple filaments are used to create different power settings, the minimum number of filaments required for three distinct settings is two.

One can be switched on for the lowest setting, the second for a medium setting, and both for the highest setting. Electromotive force (emf) is a type of potential difference but not all potential differences are emfs, as emf refers specifically to the voltage generated by a source such as a battery or generator, while potential difference can occur across any two points in a circuit.