A physics student has a single-occupancy dorm room. The student has a small refrigerator that runs with a current of 3.00 A at a voltage of 110 V, a lamp that contains a 100-W bulb, an overhead light with a 60-W bulb, and various other small devices adding up to 3.00 W. a. Assuming the power plant that supplies 110 V electricity to the dorm is 10 km away and the two aluminum transmission cables use 0-gauge wire with a diameter of 8.252 mm, estimate the percentage of the total power supplied by the power company that is lost in the transmission if the power is transmitted at 110 V. Hint: treat the transmission cables as cylinders and calculate the cable’s resistance from its length, diameter, and resistivity. b. What would be th
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 physics student has a single-occupancy dorm room. The student has a small refrigerator
that runs with a current of 3.00 A at a voltage of 110 V, a lamp that contains a 100-W bulb,
an overhead light with a 60-W bulb, and various other small devices adding up to 3.00 W.
a. Assuming the power plant that supplies 110 V electricity to the dorm is 10 km away
and the two aluminum transmission cables use 0-gauge wire with a diameter of
8.252 mm, estimate the percentage of the total power supplied by the power
company that is lost in the transmission if the power is transmitted at 110 V. Hint:
treat the transmission cables as cylinders and calculate the cable’s resistance from
its length, diameter, and resistivity.
b. What would be the result if the power company transmitted the electric power at
110 kV?
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