Distinguish between a bar magnet and an electromagnet. State flemings left hand rule. Positively charged particles moving towards the west are deflected towards the north by a magnetic field. What will be the direction of the magnetic field?
Answers
difference between bar magnet and electromagnet
>>An electromagnet is made from a coil of wire which acts as a magnet when an electric current passes through it. Often an electromagnet is wrapped around a core of ferromagnetic material like steel, which enhances the magnetic field produced by the coil.
>>Difference between Permanent Magnet and Electromagnet is magnetic field and strength. In Electromagnet, the magnetic field is created by a wire-wound coil but the magnetic field of Permanent (Bar) Magnet cannot be changed.
Flemings's left hand rule
>>It is found that whenever a current carrying conductor is placed inside a magnetic field, a force acts on the conductor, in a direction perpendicular to both the directions of the current and the magnetic field.
Positively charged particles moving towards the west are deflected towards the north by a magnetic field.
A positively charged particle projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is upward. ... Hence, according to Fleming's left hand rule, the direction of magnetic field will be upwards.
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