Electricity and Magnetism — Chapter Summary
ICSE · Class 7 · Physics
Summary of Electricity and Magnetism for ICSE Class 7 Physics. Part of the ICSE Class 7 Physics syllabus. Electricity and magnetism are closely connected.
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Overview
Electricity and magnetism are closely connected. A magnet has two poles, and like poles repel while unlike poles attract. A magnetic compass helps locate directions because its needle aligns with the Earth’s magnetic field. A current-carrying coil behaves like a magnet and is called an electromagnet
Key Concepts
A magnet attracts iron and has
A magnet attracts iron and has two poles, called north pole and south pole. The ends where attraction is maximum are the magnetic poles. Magnetic pole
Like poles repel and unlike poles
Like poles repel and unlike poles attract. Repulsion is the sure test for a magnet because attraction can happen even with plain iron.
The space around a bar magnet
The space around a bar magnet in which a magnetic compass gets influenced is called its magnetic field. A compass needle shows different directions at
A magnetic compass is a small
A magnetic compass is a small magnetic needle pivoted in a brass box with a glass top. Its red end indicates the north pole and it is used to find dir
A wire carrying electric current produces
A wire carrying electric current produces a magnetic field. A coil of insulated copper wire wound in the form of a solenoid behaves like a magnet when
Learning Objectives
- State the law of magnetism
- Identify a magnet using repulsion and magnetic behaviour
- Describe magnetic field and magnetic compass use
- Explain electromagnetism and the working of an electromagnet
- Describe the construction and working of an electric bell
Frequently Asked Questions
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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