Podcast
Questions and Answers
What is electric current defined as?
What is electric current defined as?
- The total voltage supplied by a battery
- The overall power consumed by an electric circuit
- The rate of flow of charges (correct)
- The resistance offered by components in a circuit
Which of the following is a common misconception about the direction of electric current?
Which of the following is a common misconception about the direction of electric current?
- Electric current flows from positive to negative
- Electric current can flow in both directions at once
- Electric current flows from negative to positive (correct)
- Electric current only flows in one direction
What is one advantage of using a parallel circuit compared to a series circuit?
What is one advantage of using a parallel circuit compared to a series circuit?
- Voltage is consistent across all components in parallel
- Parallel circuits are simpler to design and build
- Failure of one component does not affect the entire circuit (correct)
- Parallel circuits require fewer power sources
In a series circuit, what happens when an additional resistor is added?
In a series circuit, what happens when an additional resistor is added?
What is a key feature of circuit boards in electronic devices?
What is a key feature of circuit boards in electronic devices?
Flashcards
Electric Current
Electric Current
The rate at which electric charges flow through a conductor.
Electric Circuit
Electric Circuit
A closed loop that allows electric current to flow continuously.
Series Circuit
Series Circuit
A type of circuit where components are connected in a single path, so the current flows through each component in turn.
Parallel Circuit
Parallel Circuit
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Circuit Boards
Circuit Boards
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Study Notes
Electric Circuits and Current
- Electric circuits contain components that control electrical energy flow.
- Electric current is the rate of charge flow.
- Series and parallel circuits are types of circuits.
- Circuit boards are used in electronic devices.
Advantages of Circuits
- Series Circuit: (advantage not specified, but implied)
- Parallel Circuit: (advantage not specified, but implied)
- Circuit Boards: (advantages of using circuit boards in electronic devices not specified)
Class 7 Physics Topics
- Heating effects of electric current
- Acids, bases, and salts
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