Suppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that much energy? (Assume that electricity is charged at a rate of $0.10/(kW hour).) A) 3 cents B) 30 cents C) 3 dollars D) 30 dollars E) 300 dollars

Suppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that much energy? (Assume that electricity is charged at a rate of $0.10/(kW hour).) A) 3 cents B) 30 cents C) 3 dollars D) 30 dollars E) 300 dollars

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 50PE: An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one...

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Concept explainers

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.

Question

Suppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that much energy? (Assume that electricity is charged at a rate of $0.10/(kW hour).)

A) 3 cents

B) 30 cents

C) 3 dollars

D) 30 dollars

E) 300 dollars

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