Question

which of the following applies when the circuit is on in a ground-side switched circuit? a) there is voltage until after the switch. b) current is consumed by the load. c) there is voltage until after the load. d) voltage returns to ground.

Explanation:

In a ground - side switched circuit, when the circuit is on:

• Option A: In a ground - side switched circuit, the voltage is present up to the load, not until after the switch. So A is incorrect.
• Option B: Current flows through the load, and the load consumes power (not just current in the sense of being "consumed"), but this is not the key characteristic of a ground - side switched circuit when it's on. So B is incorrect.
• Option C: In a ground - side switched circuit, the power source provides voltage to the load, and the voltage is present until after the load (before reaching the switch which is on the ground side). When the switch is closed (circuit on), the voltage travels from the source, through the load, and then to the switch (ground side). So there is voltage until after the load.
• Option D: Voltage does not "return to ground" in the way described. The current returns to ground, and voltage is the potential difference. So D is incorrect.

Answer:

C) There is voltage until after the load.