12. If the length and area of cross-section of a copper wire is changed, guess the changes in the specific resistance of copper wire. 13. Constant N Bar Magnet Coil Situation 1 S Constant Constant N S Bar Magnet Coil Situation 2 (1) In which situation current will be induced in the coil ? (2) How do you increase the induced current in the coil ? Section-III (4x4=16 Ma
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When a magnet is moved towards or away from a coil, the magnetic field lines passing through the coil change. This change in magnetic field induces an electric current in the coil. This phenomenon is known as electromagnetic induction. Show more…
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