The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following. (a) Leaving a 40.0-W porch light on for 2 weeks while you are on vacation. (b) Making a piece of dark toast in 3.00 min with a 990-W toaster. (c) Drying a load of clothes in 40.0 min in a 4,900 W dryer.
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 cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following.
(b) Making a piece of dark toast in 3.00 min with a 990-W toaster.
(c) Drying a load of clothes in 40.0 min in a 4,900 W dryer.
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