II) A 4.80-m length of 2.0-mm-diameter wire carries a750-mA dc current when 22.0 mV is applied to its ends. If thedrift velocity is 1.7X 10-5 m/s determine (a) the resistance Rof the wire, (b) the resistivity p and (c) the number n offree electrons per unit volume.
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.
II) A 4.80-m length of 2.0-mm-diameter wire carries a
750-mA dc current when 22.0 mV is applied to its ends. If the
drift velocity is 1.7X 10-5 m/s determine (a) the resistance R
of the wire, (b) the resistivity p and (c) the number n of
free electrons per unit volume.
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