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Flashcards on Electric Circuits and Ohm's Law
Click on the flashcard to see the answer
What is an electric circuit?
A closed loop path that allows electric current to flow.
Who formulated Ohm's Law?
Georg Simon Ohm
State Ohm's Law.
The current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to its resistance.
What is the formula for calculating resistance?
Resistance = Voltage / Current
Define electric current.
The flow of electric charge through a conductor.
What is the unit of measurement for resistance?
Ohm (Ω)
What are the three components of an electric circuit?
Voltage source, conductor, and load/resistor.
How is electric current measured?
Using an ammeter.
What happens to the current in a circuit if the resistance increases?
The current decreases.
What happens to the current in a circuit if the voltage increases?
The current increases.
What is the symbol for electric current?
I
What is the symbol for voltage?
V
What is the symbol for resistance?
R
What is the relationship between voltage, current, and resistance according to Ohm's Law?
V = I * R
What is the SI unit of measurement for current?
Ampere (A)
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Test Your Knowledge
What is an electric circuit?
A closed loop path that allows electric current to flow.
A device used to measure current.
The unit of measurement for resistance.
The flow of electric charge through a conductor.
Check Answers
Who formulated Ohm's Law?
Thomas Edison
Albert Einstein
Georg Simon Ohm
Nikola Tesla
Check Answers
State Ohm's Law.
The current flowing through a conductor is inversely proportional to the voltage applied across it, and directly proportional to its resistance.
The current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to its resistance.
The current flowing through a conductor is equal to the sum of the voltage and resistance applied across it.
The current flowing through a conductor is independent of the voltage and resistance applied across it.
Check Answers
What is the formula for calculating resistance?
Resistance = Voltage * Current
Resistance = Voltage / Current
Resistance = Current / Voltage
Resistance = Power / Current
Check Answers
Define electric current.
The unit of measurement for resistance.
The flow of electric charge through a conductor.
A closed loop path that allows electric current to flow.
The force required to move electric charge.
Check Answers
What is the unit of measurement for resistance?
Volt (V)
Ampere (A)
Ohm (Ω)
Watt (W)
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What are the three components of an electric circuit?
Proton, electron, neutron
Voltage source, conductor, and load/resistor.
Positive charge, negative charge, and neutral charge
Voltage, current, and resistance
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How is electric current measured?
Using a voltmeter.
Using an ohmmeter.
Using an ammeter.
Using a wattmeter.
Check Answers
What happens to the current in a circuit if the resistance increases?
The current decreases.
The current increases.
The voltage decreases.
The voltage increases.
Check Answers
What happens to the current in a circuit if the voltage increases?
The current decreases.
The current increases.
The resistance decreases.
The resistance increases.
Check Answers
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