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Questions and Answers
What is the symbol for a battery in an electric circuit?
What is the symbol for a battery in an electric circuit?
The symbol for a battery in an electric circuit is a long line with a shorter line parallel to it.
Explain the concept of potential difference in an electric circuit.
Explain the concept of potential difference in an electric circuit.
Potential difference is the energy transferred per unit charge as charge moves between two points in a circuit. It is measured in volts (V).
How does an electromagnet differ from a permanent magnet?
How does an electromagnet differ from a permanent magnet?
An electromagnet is a temporary magnet that becomes magnetic when an electric current flows through it, while a permanent magnet retains its magnetism without an external electric current.
Study Notes
What is the symbol for a battery in an electric circuit? Explain the concept of potential difference in an electric circuit. How does an electromagnet differ from a permanent magnet?
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Description
Test your knowledge of electromagnetism, electric circuits, switches, batteries, potential difference, current, and symbols in this class 7 physics exam.