

Power and Ohm's law
Flashcard
•
Physics
•
KG - University
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is Ohm's Law?
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 is current measured in?
Back
Current is measured in Amps (A).
3.
FLASHCARD QUESTION
Front
What is voltage?
Back
Voltage is the electrical potential difference between two points and is measured in Volts (V).
4.
FLASHCARD QUESTION
Front
What is resistance?
Back
Resistance is a measure of the opposition to the flow of electric current, measured in Ohms (Ω).
5.
FLASHCARD QUESTION
Front
What does power mean in electrical terms?
Back
Power is the rate at which electrical energy is transferred by an electric circuit, measured in Watts (W). It can also be defined as Joules transferred per second.
6.
FLASHCARD QUESTION
Front
How do you calculate power using current and voltage?
Back
Power (P) can be calculated using the formula P = V × I, where V is voltage in Volts and I is current in Amps.
7.
FLASHCARD QUESTION
Front
What is the formula to find resistance using voltage and current?
Back
Resistance (R) can be calculated using the formula R = V / I, where V is voltage in Volts and I is current in Amps.
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