Download HDI #94-Bulbs in Parallel WS

Watch Hewitt-Drew-it! Bulbs in Parallel #94 and complete #1 through #10 below.
1. In a ________ circuit the current is the same in successive lightbulbs whatever their
___________.
2. Voltage ________ across particular bulbs in series depends on their
______________.
3. When bulbs are in parallel the voltage across each is the _________ whatever the
bulb ________________.
4. In the circuit shown below each bulb is connected to the _________ battery. 6 V
across each bulb means that for identical bulbs the _________ in each is _________.
Which means that each bulb glows as brightly as they would all __________. If one
bulb blows out, the other will _______________ unlike in a series circuit where if one
bulb blows out the other will ______________.
5. From Ohm’s law the current in each bulb is __________ which means the current in
the battery is ___________. The currents in each branch ___________.
6. _____________ divides, not _____________.
7. Note the currents and their directions in each of the conductors (wires) in the circuit
shown below.
8. In a parallel circuit, such as the ones shown above, the overall resistance of the
circuit is __________ than the resistance of an individual bulb.
9. The more bulbs that are added in a parallel circuit, the ________ the overall
resistance of the circuit. The lower the number of bulbs in a parallel circuit, the
__________ the overall resistance of the circuit.
10. For the circuit shown below, answer the following questions:
a. When the switch is closed how, if at all, will the brightness of the upper bulbs be
affected?
b. When the switch is closed how, if at all, will the current drawn from the battery be
affected?