The change in magnetic field lines in a coil is the cause of induced electric current in it. Name the underlying phenomenon.
The change in magnetic field lines in a coil is the cause of induced electric current in it. Name the underlying phenomenon.
Official answer
The underlying phenomenon is Electromagnetic Induction.
Marking scheme
- 1.1 Mark: Correctly naming 'Electromagnetic Induction'.
Hint
Think of the process where electricity is induced in a conductor by a changing magnetic field.
Quick oral answer
The phenomenon is called Electromagnetic Induction. It refers to the generation of an electric current in a loop or coil when the magnetic field passing through it changes.
Common mistakes
- 1.Confusing electromagnetic induction with the magnetic effect of electric current (Oersted's discovery).
Analysis and explanation
When the magnetic field lines passing through a coil change over time, an electric current is induced in the coil. This phenomenon of generating an electric current in a closed circuit due to a changing magnetic field is known as electromagnetic induction.
Interesting facts
Electromagnetic induction was discovered independently by Michael Faraday in 1831 and Joseph Henry in 1832. It is the foundational principle behind modern power generators and transformers.
Question details
Q2 of 39 questions
- Board
- CBSE
- Class
- Class 10
- Subject
- Science
- Year
- 2020
- Section
- Section A
- Marks
- 1
- Type
- Very Short Answer
- Chapter
- Magnetic Effects of Electric Current
- Topic
- Electromagnetic Induction
- Bloom's level
- Remembering
- Syllabus topic
- Electromagnetic induction, Induced potential difference, Induced current
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Frequently asked questions
How many marks does this question carry in CBSE Class 10 Science 2020?
This question carries 1 mark in the CBSE Class 10 Science 2020 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Magnetic Effects of Electric Current" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Electromagnetic Induction" from CBSE Class 10 Science.
What type of question is this in the CBSE Class 10 Science 2020 paper?
This is a Very Short Answer question from Section A in the CBSE Class 10 Science 2020 paper.