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- 1. Multiple ChoiceElectric current is measured in ______.WattsVoltsAmperes
- 2. Multiple ChoiceWhat is the unit for resistance?VoltsAmperesOhms
- 3. Multiple ChoiceElectricity is the flow of _________.protonsneutronselectrons
- 4. Multiple ChoiceWhat is the symbol for CurrentCQIA
- 5. Multiple ChoiceWhat is the unit for CurrentCQIA
- 6. Multiple Choice
A current of 2A flows through a resistor with a resistance of 10Ω. What is the potential difference across the resistor?
5V
5J
20V
20J
- 7. Multiple Choice
A light bulb has a resistance of 7Ω with a potential difference of 21V across it. What is the current flowing through the light bulb?
147 A
28 A
3A
30A
- 8. Multiple Choice
A resistor has a potential difference of 10V across it and a current of 2A flowing through it. What is the resistance of the resistor?
20Ω
5Ω
200Ω
0.2Ω
- 9. Multiple Choice
A current of 2A flows through a resistor with a resistance of 10Ω. What is the potential difference across the resistor?
5V
5J
20V
20J
- 10. Multiple Choice
A light bulb has a resistance of 7Ω with a potential difference of 21V across it. What is the current flowing through the light bulb?
147 A
28 A
3A
30A
- 11. Multiple Choice
How many volts are in a circuit with a battery that has a resistance of 10 Ω and a current of 2 A?
0.5 V
5 V
20 V
- 12. Multiple ChoiceVoltage is measured in __.volts.watts.coulombs.
- 13. Multiple Choice
How many Volts would it take to push 1 A through a resistance of 1 Ω
10 volts
1 volt
48 volts
5 volts
- 14. Multiple ChoiceIf the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?5 V12 V0.2 V20 V
- 15. Multiple Choice
Which equation can be used to calculate the resistance R of a resistor?
V = I / R
I = V x R
R = V x I
V = I x R
- 16. Multiple Choice
The resistance of a component in a circuit is found using an ammeter and a voltmeter.
How are the ammeter and the voltmeter connected?
the voltmeter and ammeter in parallel with the component
the voltmeter and ammeter in series with the component
the voltmeter in parallel with the component and the ammeter in series with the component
the voltmeter in series with the component and the ammeter in parallel with the component
- 17. Multiple Choice
What is the current in an electric circuit?
The energy of the circuit
The flow of electrons in the circuit
The power of the circuit
- Answer choicesTagsAnswer choicesTags