Please answers this question fast guys physics class 7
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1. Miniature Circuit Breakers (MCBs) are electromechanical devices which are used to protect an electrical circuit from an overcurrent. The lead reasons for an overcurrent could be a short circuit or overload. Unlike a Fuse, MCB does not have to be replaced every time after a fault occurs and it can be reused.
2.An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil. A current through the wire creates a magnetic field which is concentrated in the hole, denoting the centre of the coil.
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2. Ans :- An electromagnet is a type of magnet in which the magnetic field trip is produced by an electric current. Electromagnets usually consists of wire wound into a coil. A current through the wire creates a magnetic field which is concerned in the hole, denoting the centre of the coil.
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2. Ans :- An electromagnet is a type of magnet in which the magnetic field trip is produced by an electric current. Electromagnets usually consists of wire wound into a coil. A current through the wire creates a magnetic field which is concerned in the hole, denoting the centre of the coil.
Explanation:
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