How much energy is consumed by a 1.0 kW hair dryer used for 11 min?  E= How much energy is consumed by a 10 W night light left on for 13 hr? E=

Q: A compact fluorescent lamp (CFL) uses less energy than its equivalent incandescent bulb. How much…

A: Power of CFL = P1 = 20 W Power of incandescent lamp = P2 = 100 W Price of electricity = PE = P…

Q: A 400-W computer (including the monitor) is turned on for 8.0 hours per day. If electricity costs…

A: Given  Power p= 400 W  Time t = 8 h  electricity costs 10¢ per kWh,

Q: If a person has $5, how long could he or she play a 200 W stereo if electricity costs $0.15 per kWh?

A:

Q: If an iron takes 660KJ of energy from the mains supply after being left on for 10 minutes, what is…

A:

Q: A compact fluorescent lamp (CFL) uses less energy than its equivalent incandescent bulb. How much…

A: Energy is defined as the ability to do work. This implies that a body having higher energy can do a…

Q: maximum energy that can be transferred

A:

Q: B. Calculate the cost of running a 75 W stereo for two days if the cost per hour is 70 centavos.

A: The total cost to run a device in a certain time is C = c×t, where C = total cost c = cost per hour…

Q: 1. You use a 1300-watt hair dryer for 10 minutes each day. (a) What is the power of the hair dryer…

A: Given data P=1300 Wt=10 min

Q: Four light bulbs, rated at 100 W, 75 W, 50 W and 25 W each, are in parallel. What is the total power…

A: Given Data, Power of the four bulbs are = 100 W, 75 W, 50 W, 25 W

Q: 15 Q 20 Q RL O 30 0 15 A

A:

Q: The power consumed by a refrigerator is 450 W. This refrigerator works for a total of 6 hours every…

A: Given that power consumed by refrigerator and refrigerator work a total of 6 hours in one day and…

Q: Your roommate leaves a 120 W fan running in your apartment. Over the course of an hour, how much…

A:

Q: A hair dryer is rated at 1200 W. One average, it is used for 400 minutes every month. The rate for…

A:

Q: For each of the following, is W-R positive, negative, or zero? A B F ф B d A d B W- is is WA-B A B A

A: The expression of work done is given by, W=Fdcosϕ Here, F is the force, d is the distance traveled,…

Q: A microwave oven has a power requirement of 1,255 W. A frozen dinner requires 4.2 min to heat on…

A: Given,

Q: What energy powers a lightbulb? A. Electrical B. Sound C. Mechanical D. Heat

A:

Q: An average-sized home refrigeration unit has a 1/19−hp fan motor for blowing air over the inside…

A:

Q: 7. Determine the power consumed (in kW) by the heating coil in the following diagram. heating coil…

A:

Q: determine the cost of operating a 2 W electric clock for 365 days at three cents ($.03) per kilowatt…

A: Since you have posted multiple questions we will solve the first question for you . If you want any…

Q: A light rail commuter train draws 645 A of 590 V DC electricity when accelerating. A.What is its…

A: a)  The required input power is, b)  The required time is,

Q: Q9. How much does it cost in one month to burn a 2000 W Room heater for 6 hours per day if…

A: power of room heater = 2000 W time for which the room heater runs each day = 6 hours per day…

Q: A microwave has a power requirement of 1,264 W. A frozen dinner required 4.2 mins to heat on full…

A:

Q: A 100 W electric bulb is used for 10 hours a day. How many units of energy are consumed in 30 days?

A: The total power consumed by a bulb,

Q: Determine the amount of electrical energy (in Kw•hr) used by the following devices when operated for…

A: (1) Power,  P=1500 W   =1.5 kW Time,  t=5 min=560=0.0833 hr

Q: 1. A heater marked 2 000 W/3 000 W is switched on for 4 hours. For the first hour, it is on the…

A:

Q: A water jet consumes 3950W for 126 hours a week What is the energy consumed (kWh) for a one-year…

A: Given Power consumed by water jet =3950 W =3.950 kWh Used for 126 hours a week.

Q: What is the kinetic energy of 458N car which is moving at 75m/s?

A: GivenWeight of car is W=458NVelocity of car is v=75m/s

Q: A 60 W incandescent bulb costs $0.36 and lasts 1,000 hr; a 14 W CFL bulb costs $4 and lasts 10,000…

A:

Q: A family goes on vacation for one week but forgets to turn off an electric fan that consumes…

A: Given data:  Power (P) = 200 W = 0.200 kW Total time = 1 Week Cost of electricity = 12.0 ¢/kW.h…

Q: Why is the answer not approx 0.58 kWh as P = (0.2)(120) = 24 W = 0.024 kW  and if E = P*t then E =…

A: Yes  Your answer 0.58 kwh is correct answer In previous answer time  one day 24 hour It alredy time…

Q: How many KWh of energy does a 650-W toaster use in the morning if it is in operation for a total of…

A: Given:Power = 650 W.Operational time = 4.5 min.

Q: light bulb uses up a power of 2.6 kW/hr. If the rate is Php153.42 per 1 kW/hr, and the light was on…

A: Power is the rate of work done. Power = work done / time P = W/t =   W - work done t - time in…

Q: An electric clothes dryer is rated at 2,000 W. How much energy does it use in 35 min?   kWh

A:

Q: A family of five is planning to install solar panels on the roof of their home to help reduce the…

A:

Q: D. and kept on for 50 min. The amount of energy transferred to the room by the heater is A 2-kW…

A:

Q: A hair dryer is rated at 1850 W. Assuming there are 30 days in a month, what is the monthly cost of…

A: Given data:  Power (P) = 1850 W = 1.850 kW Daily uses = 12 minutes = 0.2 hours Number of days in a…

Q: An ice cube is placed in a microwave oven. Suppose the oven delivers 135 W of power to the ice cube…

A: Let the power is denoted by P and the energy be denoted by E.

Q: At $.110 per kWh, what does it cost to leave a 40-W porch light on day and night for a year? Enter…

A: Given Power of porch light is P=40 W Time is t= 1 year= 8,765.82  hours The energy delivered to the…

Q: A water jet consumes 3750 W for 126 hours a week. a. What is the energy consumed (kWh) for a…

A:

Q: Suppose you leave a 50 W bulb on for a month. Approximately how much will you pay for using that…

A:

Q: The average television is said to be on 6 hours per day. Estimate the yearly cost of electricity to…

A:

Q: What is the cost of operating a 1.5 W electric clock for a year in Chicago? (The cost of electricity…

A: The relation between Power of the clock P, energy consumed by the clock E and time period t is…

Q: With a 1200-W toaster, how much electrical energy is needed to make a slice of toast (cooking time =…

A: Consumed electrical energy is

Q: What is the cost of operating a 2.8 W electric clock for a year in Phoenix? (The cost of electricity…

A: Given: Power of electric clock is P = 2.8 W The cost of electricity is 10.2 cents/kWh

Q: Show that the units 1 A2 . Ω = 1 W , as implied by the equation P = I2 R .

A: Power is defined as rate of doing work. Its SI unit is watt(W), which is equal to one joule per…

Q: The maximum power drawn from source depends on: Select one: O a. Value of load resistance O b. Both…

A:

Q: An electric water heater consumes 300 watts for 3 hrs per day. What is the cost of running it for…

A: The energy used per day is given as  E=Ptwhere P is the per day power consumedt is the usage time…

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.