Which of the following fact(s) is/are true about a natural magnet?
When a charged particle moves perpendicular to a magnetic field, then
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The direction of magnetic field pattern produced by a straight wire can be determined with which one of the following rules?
What type of material is used in the core of an electromagnet?
Which of these factors affect(s) the strength of an electromagnet?
A straight wire of diameter 2.5 mm carrying a current of 2 A is replaced by another thick wire of 5 mm diameter. The strength of the magnetic field far away is
Permanent magnets are made up of
To which wire amongst the following, an electric fuse connected?
The rate of change of flux is greater in case when a magnet is moved towards a coil ______.
13 videos|44 docs|187 tests
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13 videos|44 docs|187 tests
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