The resistances in the circuit have values: R1= 2.0-Q, R2=4.0-Q and R3-8.0-Q. The combination is connected across an ideal dc power supply with ε = 24 V. Find the current through R2. R2 ww T R₁ ww + F E R3

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.