Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
A coil consists of 290 windings (loops, or "turns") of insulated copper wire, where the insulator thickness can be ignored. The wire diameter is 1.6 mm. The coil radius is 13 cm (and you should assume that all the wire is at this radial distance). What is the resistance of this coil?
Resistance of a wire of length l , area of cross section A, and resistivity is given as follows:
Resistivity of copper is
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