Answer:
Yes, both bulbs are equally bright.
2. Experiment: Add two more light bulbs to the circuit, as shown to
the right. Turn the switch to ON, and observe the brightness of the bulbs.
A. Did the brightness of the bulbs change?
No, the brightness of the bulbs did not change.
B. Remove one light bulb. What happens?
The brightness of the remaining bulbs does not change.
C. How did the parallel circuit respond differently to these changes than a series circuit?
Adding bulbs: Adding bulbs to the parallel circuit has no effect on the other bulbs.
Removing bulbs: Removing bulbs from a parallel circuit has no effect on the remaining bulbs.
3. Observe: Replace one of the light bulbs in your circuit with a wire. Now there is a path in the circuit with no light bulb to slow down the moving charges. What happens?
The loop of wire turns red and all the current goes through this Loop. The lights outside the loop get less current so they dim. This situation is called a short circuit. The red arrows indicate enormous current. This is very dangerous because so much current will heat up the wire and could even start a fire!
Explanation: