Question

in the circuit shown in the illustration, the battery illuminates a lamp and sounds a horn. opening switch 2 will
a short out both the horn and the lamp.
b activate the horn and turn off the lamp.
c silence the horn and leave the lamp on.
d alternate power between the lamp and the horn.

Explanation:

Step1: Analyze the circuit

When switch 2 is open, the path for current to the horn is broken.

Step2: Check the lamp's circuit

The lamp's circuit (through switch 1) remains intact. So current can still flow to the lamp, keeping it on, while no current flows to the horn (silencing it).

Answer:

C. silence the horn and leave the lamp on.