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When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?
- a)Permanent magnet
- b)Temporary magnet
- c)Electromagnet
- d)Magnetized coil
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
When a wire carrying current is wound into a coil around an iron nail,...
A coil of wire around an iron core that becomes magnetic when current flows through it is known as an electromagnet.
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When a wire carrying current is wound into a coil around an iron nail,...
Understanding the Concept of Electromagnets
When a wire carrying an electric current is wound around a ferromagnetic material, such as an iron nail, it creates a magnetic field. This phenomenon is the basis for what we refer to as an electromagnet.
What is an Electromagnet?
- An electromagnet is a type of temporary magnet that is created when electricity flows through a coil of wire.
- The strength of the magnetic field depends on the amount of current flowing through the wire and the number of turns in the coil.
Why is it Temporary?
- Unlike permanent magnets, which retain their magnetism over time, electromagnets only exhibit magnetic properties while the current is flowing.
- When the current is turned off, the magnetic field disappears, and the material loses its magnetism.
Applications of Electromagnets
- Electromagnets are widely used in various applications, including:
- Electric motors: They allow for the conversion of electrical energy into mechanical energy.
- Magnetic locks: Used for security systems.
- Magnetic cranes: Used in recycling yards to lift heavy metallic objects.
Conclusion
In summary, the correct answer to the question is option C: Electromagnet. This temporary magnet is formed when electric current passes through a coil of wire wrapped around an iron core, demonstrating the principles of electromagnetism.
When a wire carrying an electric current is wound around a ferromagnetic material, such as an iron nail, it creates a magnetic field. This phenomenon is the basis for what we refer to as an electromagnet.
What is an Electromagnet?
- An electromagnet is a type of temporary magnet that is created when electricity flows through a coil of wire.
- The strength of the magnetic field depends on the amount of current flowing through the wire and the number of turns in the coil.
Why is it Temporary?
- Unlike permanent magnets, which retain their magnetism over time, electromagnets only exhibit magnetic properties while the current is flowing.
- When the current is turned off, the magnetic field disappears, and the material loses its magnetism.
Applications of Electromagnets
- Electromagnets are widely used in various applications, including:
- Electric motors: They allow for the conversion of electrical energy into mechanical energy.
- Magnetic locks: Used for security systems.
- Magnetic cranes: Used in recycling yards to lift heavy metallic objects.
Conclusion
In summary, the correct answer to the question is option C: Electromagnet. This temporary magnet is formed when electric current passes through a coil of wire wrapped around an iron core, demonstrating the principles of electromagnetism.
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When a wire carrying current is wound into a coil around an iron nail,...
-OPPATION "C"
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When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer?.
When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer? for Class 7 2025 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 7 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer?.
Solutions for When a wire carrying current is wound into a coil around an iron nail, it acts as a temporary magnet. What is this temporary magnet called?a)Permanent magnetb)Temporary magnetc)Electromagnetd)Magnetized coilCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
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