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# Electric Circuits

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1.
Complete the following statement:

If you increase the resistance in a series circuit,                               .
1. the current will also increase
2. the current will decrease
3. the voltage will increase
4. the voltage will decrease
2.
Electric current is measured in                .
1. amperes
2. watts
3. meters
4. inches
3.
Electrical power is expressed in watts.
1. True
2. False
4.
A light bulb with resistance of 2 ohms is connected to a 4-V battery. What is the current flowing through the circuit?
1. 0.5 A
2. 5 A
3. 2 A
4. 1 A
5.
Meg creates a circuit with a 12 volt battery. It is a parallel circuit with 3 branches and each branch has a 3 Ohm resistor. How much voltage will be delivered on each branch?
1. 4 Volts
2. 12 Volts
3. 36 Volts
4. None of the above
6.
Look at the drawing. If the voltage is 6 volts and each resistor is 2 Ohms, what is the total resistance of the circuit?
1. 3 Ohms
2. 0 Ohms
3. 1 Ohm
4. 6 Ohms
7.
Describe the difference between a series circuit and a parallel circuit.
• series - single pathway for charge flow
parallel - charges have more than 1 pathway to flow
8.
When you are at home, turning off a light usually does not turn off your T.V. This is because
1. most electrical devices in a house are on parallel circuits.
2. most electrical devices in a house are on series circuits.
3. they have different sources of voltage.
4. a T.V. does not require electricity.
9.
An electric component that stores charge because it can accumulate electric charge when connected to power source is called a(n)                .
1. resistor
2. inductor
3. capacitor
4. switch
10.
What is the relationship explained by Ohm's Law?
• The current through a conductor between two points is directly proportional to the potential difference across the two points.
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