What is Ohm's Law?
Ohm's Law

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Physics
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9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It can be expressed as V = I × R.
2.
FLASHCARD QUESTION
Front
What does 'current' mean in electrical terms?
Back
Current refers to the flow of electric charge, measured in Amperes (A). It indicates how fast the electrons are flowing through a circuit.
3.
FLASHCARD QUESTION
Front
What is the unit of measurement for resistance?
Back
The unit of measurement for resistance is Ohms (Ω).
4.
FLASHCARD QUESTION
Front
What is the unit of measurement for voltage?
Back
The unit of measurement for voltage is Volts (V).
5.
FLASHCARD QUESTION
Front
What is the unit of measurement for current?
Back
The unit of measurement for current is Amperes (A).
6.
FLASHCARD QUESTION
Front
How do you calculate current using voltage and resistance?
Back
Current (I) can be calculated using the formula I = V / R, where V is voltage and R is resistance.
7.
FLASHCARD QUESTION
Front
If a circuit has a voltage of 12 volts and a resistance of 3 ohms, what is the current?
Back
Using Ohm's Law, I = V / R = 12V / 3Ω = 4A.
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