The resistance and the magnitude of the current depend on the path that the current takes. The drawing shows three situations in which the current takes different paths through a piece of material. Each of the rectangular pieces is made from a material whose resistivity is ρ = 1.50 x 10-2 Ω*m, and the unit of length in the drawing is L0 = 6 cm. Each piece of material is connected to a 3.00-V battery. Find (a) the resistance and (b) the current in each case.
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.
The resistance and the magnitude of the current depend on the path that the current takes. The drawing shows three situations in which the current takes different paths through a piece of material. Each of the rectangular pieces is made from a material whose resistivity is ρ = 1.50 x 10-2 Ω*m, and the unit of length in the drawing is L0 = 6 cm. Each piece of material is connected to a 3.00-V battery. Find (a) the resistance and (b) the current in each case.
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