3. Draw the diagram for the circuit shown in Figure 11.30.

4. Draw a circuit diagram that contains three cells connected in series to a flashlight bulb. If each cell is 1.5 V, what is the potential difference across the bulb?

5. How does the current leaving the cell in a parallel circuit compare with the current in a series circuit, if both circuits have the same type of cell and the same number of identical flashlight bulbs?

6. Will each of the two bulbs connected in parallel be as bright as a single bulb connected to a cell? Why? In this question, assume that all bulbs are identical and both cells are identical.

7. A set of lights has a bulb that can be inserted near the plug to make all the lights flash on and off. If one of the regular bulbs burns out, the other bulbs still operate. Explain why.

8. In the circuit diagram on the right, the flashlight bulbs are identical. Describe what you would expect to observe in each of the following situations.

a. switch 1 closed, switches 2 and 3 open

b. switches 1 and 2 closed, switch 3 open

c. switches 1 and 3 closed, switch 2 open

d. all switches closed