NJCTL APEM Circuits 1-18

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Physics
•
University
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a circuit in electrical engineering?
Back
A circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and load.
2.
FLASHCARD QUESTION
Front
Define 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). Formula: V = I * R.
3.
FLASHCARD QUESTION
Front
What is the difference between series and parallel circuits?
Back
In a series circuit, components are connected end-to-end, so the same current flows through all components. In a parallel circuit, components are connected across common points, so the voltage across each component is the same.
4.
FLASHCARD QUESTION
Front
What is the role of a resistor in a circuit?
Back
A resistor limits the flow of electric current in a circuit, providing resistance and controlling voltage levels.
5.
FLASHCARD QUESTION
Front
Explain the concept of voltage.
Back
Voltage is the electric potential difference between two points in a circuit, measured in volts (V). It represents the energy per unit charge available to move electrons.
6.
FLASHCARD QUESTION
Front
What is a capacitor and its function in a circuit?
Back
A capacitor is a device that stores electrical energy in an electric field, used to smooth out voltage fluctuations and provide energy storage.
7.
FLASHCARD QUESTION
Front
Define the term 'current' in the context of electrical circuits.
Back
Current is the flow of electric charge in a circuit, measured in amperes (A). It represents the rate at which charge is flowing.
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