D) So long as the change in flux takes place Q. 14 When a magnet is moved with its north polarity towards a coil placed in a closed circuit, then nearer face of the coil A) Shows south polarity B) Shows sometimes south polarity C) Shows north polarity D) Shows sometimes south and sometimes north polarity
Added by Zachary C.
Close
Step 1
When a magnet is moved towards a coil, it creates a changing magnetic field. Show more…
Show all steps
Your feedback will help us improve your experience
Ankur S and 69 other Microeconomics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
As a coil is moved in a magnetic field an emf is induced in the coil causing a current to flow within the coil. This current interacts with the magnetic field producing a force which a. causes the coil to tend to flip over. b. acts at right angles to the coil's motion. c. acts in the direction opposite to the coil's motion. d. acts in the direction of the coil's motion.
Ankur S.
A bar magnet is initially at rest inside a coil as shown. The magnet is then pulled out from the left side. (a) In which direction does current flow through the galvanometer as the magnet is pulled away? (b) How would the magnitude of the current change if two such magnets were used, held side by side with the north poles together and the south poles together? (c) How would the magnitude of the current change if the two magnets were held side by side with opposite poles together instead?
A cylindrical bar magnet is kept along the axis of a circular coil. The magnet is rotated about its axis such that north pole faces the coil. The induced current in the coil (a) is zero (b) is clockwise from magnet side (c) may be clockwise or anti-clockwise (d) is anti-clockwise from magnet side
Electromagnetic Induction and Alternating Current
Round 1
Recommended Textbooks
Principles of Economics
Principles of Microeconomics for AP® Courses
Economics
Watch the video solution with this free unlock.
EMAIL
PASSWORD