Question

Applying your knowledge, study the drawings at the right of this page. For which numbers will the bulb light?

1) 1
2) 2
3) 3
4) 4
5) 5
6) 6
7) 7
8) 8
9) 9
10) 10

Answer 1

The bulb will light for numbers 1, 4, 5, 7, 8, 9, and 10. Bulb A is brighter than both bulbs B and C. When switch S is opened, the bulbs will turn off and the currents in bulbs A and B decrease to zero.

Step-by-step explanation:

The bulb will light for numbers 1, 4, 5, 7, 8, 9, and 10. Bulb A is brighter than both bulbs B and C. When switch S is opened, the bulbs will turn off because the circuit is broken and no current can flow through them. The currents in bulbs A and B decrease to zero when switch S is opened.