Magnetic effects of electric current 0 physics extra questions
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when a current is pass through a conducting wire a magnetic field is produced which can be detected with a compass needle.
1-Magnetic field and field lines are created due to current in a straight wire.
2-If a conducting wire is wound in form of a cylindrical coil whose diameter is less in comparison to its length,the coil is called solenoid which is used to obtain magnetic fields.
3-Temporary magnets called electro magnets are also created using current .
4-Current when passed in a loop also,produces magnetic fields
1-Magnetic field and field lines are created due to current in a straight wire.
2-If a conducting wire is wound in form of a cylindrical coil whose diameter is less in comparison to its length,the coil is called solenoid which is used to obtain magnetic fields.
3-Temporary magnets called electro magnets are also created using current .
4-Current when passed in a loop also,produces magnetic fields
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