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1. For the second circuit, consisting of a single battery and two light bulbs in

ID: 1389512 • Letter: 1

Question

1. For the second circuit, consisting of a single battery and two light bulbs in series, how does the brightness of the bulbs compare to the first circuit, consisting of a single bulb?

o almost the same

o brighter     

o dimmer

2. For the second circuit, consisting of a single battery and two light bulbs in series, what is the total resistance of the circuit if each light bulb has a resistance of 9.8 ohms?
____ ohms
What is the current through each bulb if the battery provides 1.5 Volts?

______ with units

3. For the third circuit, consisting of a single battery and two light bulbs in parallel, how does the brightness of the bulbs compare to the first circuit, consisting of a single bulb?

brighter

dimmer     

almost the same

4. For the third circuit, consisting of a single battery and two light bulbs in parallel, what is the total resistance of the circuit if each light bulb has a resistance of 9.3 ohms?
_____ ohms
How much current is being drawn from the battery if the battery provides 1.5 Volts?

______ (with units)

What is the current through each bulb?

______ (With Units)

Explanation / Answer

1) dimmer

2) 19.6 ohm

and

0.0765 A

3) almost the same

4) 4.65 ohm

and

0.322 A