Magnetic Effect of Electric Current — Flashcards
Kerala Board · Class 10 · Physics
22 flashcards for Magnetic Effect of Electric Current (Kerala Board Class 10 Physics) to test yourself on key terms and facts.
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What is the magnetic effect of electric current? State the discovery and discoverer.
Answer
The magnetic effect of electric current is the phenomenon where a magnetic field is created around a current-carrying conductor. This magnetic field can exert force on magnetic materials like compass …
State the Right Hand Thumb Rule and explain its application.
Answer
Right Hand Thumb Rule: Imagine holding a current-carrying conductor with your right hand such that the thumb points in the direction of electric current. The fingers curled around the conductor will i…
What is Ampere's Swimming Rule?
Answer
Ampere's Swimming Rule: Imagine a person swimming in the direction of electric current and looking at a magnetic needle. The north pole of the magnetic needle will deflect towards the left side of the…
Define solenoid and list the factors affecting its magnetic strength.
Answer
Solenoid: An insulated conductor wound in a helical (spiral) shape where the centers of all turns lie on the same straight line. Factors affecting magnetic strength: 1) Number of turns of conductor pe…
How do you determine the polarity of a current-carrying solenoid?
Answer
Hold the solenoid with your right hand such that your four fingers curl in the direction of current flow through the coils. Your thumb will point towards the north pole of the solenoid. Alternatively:…
What is an electromagnet? How can you make a strong electromagnet?
Answer
Electromagnet: A device that creates a magnetic field using electric current. To make a strong electromagnet: 1) Use more turns of conductor per unit length, 2) Increase the current flowing through th…
Compare permanent magnets and electromagnets in terms of magnetism, polarity, and strength.
Answer
Permanent Magnet: Magnetism is permanent, polarity cannot be changed, magnetic strength is fixed. Electromagnet: Magnetism is temporary (only when current flows), polarity can be reversed by reversing…
State Fleming's Left Hand Rule and its application.
Answer
Fleming's Left Hand Rule: Hold thumb, first finger, and second finger of left hand perpendicular to each other. First finger - direction of magnetic Field, seCond finger - direction of Current, thuMb …
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Sources & Official References
- Kerala Board of Public Examinations — keralapareekshabhavan.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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