Circuits Review Penner v2

You want to find the resistance of R1. You should use

• An ammeter at A and a voltmeter at B

• An ammeter at B and a voltmeter at G

• An ammeter at G and a voltmeter at A

• An ammeter at B and a voltmeter at A

If R1>R2>R3, which resistor has the least amount of current running through it?

• R1

• R2

• R3

• R2 and R3

If R1=5 ohms, R2=6 ohms, and R3=12 ohms, what is the total resistance for the circuit?

• $23\ \Omega$

• $2.2\ \Omega$

• $9\ \Omega$

• $18.2\ \Omega$

How much current runs through the bulb?

• 0.33 A

• 3 A

• 80 A

• 1200 A

What is the resistance of lamp 1?

• $0.67\ \Omega$

• $1.5\ \Omega$

• $5\ \Omega$

• $6\ \Omega$

What will happen to the current in Lamp 1 if Lamp 3 is added to the circuit as shown above?

• The current will increase

• The current will decrease

• The current will be zero

• The current will stay the same

What will happen to the current in Lamp 1 if Lamp 3 is added to the circuit as shown?

• The current will increase

• The current will decrease

• The current will be zero

• The current will stay the same

A battery (of voltage V or 2V) and resistors (of resistance R or 2R) are connected in various combinations as shown. Which circuit has the least amount of current flowing from the battery?

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• 
• 
• 
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The current running through the 3 ohm resistor is

• 1 A

• 2 A

• 3 A

• 1.4 A

If these resistors represented light bulbs, which would be the brightest?

• the 4 ohm resistor

• 2 A

• 3 A

• 1.4 A