The figure below shows a circuit consisting of a 24.0 V battery in series with an inductor with inductance L = 10.5 H, a resistor with resistance R = 8.00 02, and a switch, initially open. + E S R (a) After the switch is closed, what is the maximum current (in A) that will flow through the circuit? A S (b) What is the time constant (in s) of the circuit? (c) After the switch is closed, how much time (in s) does it take for the current to reach 95.0% of its maximum value? S

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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.