Which costs more, running a 2,000-W hair dryer for 3 min or leaving a 40-W lamp on overnight (10 h)?

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1600 W…

A: Given that, the number of instruments and its power and using time. Then We have to calculate the…

Q: A standard flashlight battery can deliver about 4.9 W·h of energy before it runs down. (a) If a…

A:

Q: A standard flashlight battery can deliver about 1.7 W⚫h of energy before it runs down. (a) If a…

A: Step 1:According to the question it is given: Energy of the batteryE = 1.7 Wh Power of the lampP =…

Q: Compare the energy consumption of two commonly used items in the household. Calculate the energy…

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Q: 37. Three identical light bulbs are attached to a battery as shown. Compared to when the switch is…

A: Given Three identical bulbs are connected as shown in the figure.we have to find by what factor the…

Q: 10.) Calculate Req=- mi 12.0 - 6.05 4.0.52 8.0

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Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A: Given, Electricity cost = 0.12$/kWh And power P=Et So, E=P.t a) Power = 40W total time, t =7days=…

Q: 7. A 60W light bulb runs for 3 hours, how much electrical energy has it used?

A: Power = P = 60 W time = t = 3 hours = 3 x 3600 = 10800 s energy = E = ?

Q: 4₁ = ? R1 V₁ = ? = v= 12.0 V (a) Calculate P3 (in W). x W 1.50 Ω R2 = 8.00 0. 1₂ = ? R3 = 12.40 V3 =…

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

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Q: Academic Departments ETC CIMS - A household use the following electric appliances: (i) A…

A: A household use the following electric appliances: (1) A Refrigerator of rating 100 W for twenty…

Q: roblem 5: Suppose you have have a 1100 W toaster. Part (a) How much electrical energy in J is…

A:

Q: The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value.…

A:

Q: A standard flashlight battery can deliver about 2.3 W-h of energy before it runs down. (a) If a…

A:

Q: A Heater has a wattage rating of 1500W and has been in operation for 2 hours. The Energy Company…

A: 6. H1. The energy consumed in kWh can be calculated as

Q: A 75 W incandescent bulb and a 15 W compact fluorescent bulb, as shown, each produce 3.0 W of…

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Q: Energy c o s t s $ 0.053/kWAh. A toaster, rated at1.0 kWAh, is used for a total of 30 minutes per…

A: The kilowatt-hour (kWh) is the unit of energy equivalent to 1 kilowatt (kW) of power expended for 1…

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…

A:

Q: The cost to operate a clothes dryer for a year is $80.25. If the rate for electrical energy is…

A:

Q: Compare the energy consumption of two commonly used items in the household. Calculate the energy…

A: Wtoaster = 0.0967 kWh Wlight = 116 kWhExplanation:Approach to solving the question:Detailed…

Q: A 1100 W toaster takes one minute to toast a slice of bread. At 9.0 cents/(kW.-h), how much does the…

A: Time to toast a bread = 1 minute = 1/60 hour Power of toaster = 1100 W cost= 9.0 cents/kWh

Q: A stationery shop use the following electric appliances: (i) Four Air Conditioner of rating 1900 W…

A: Electrical energy consumed by air-conditioners, for the month-E1=No. of air-conditioner×Rating of…

Q: The people who live in suburbs use simultaneously: 2Hp aircon for 3 hrs. 900 watts toaster for 9…

A:

Q: Appliances that require a lot of power, such as a dryer or a stove, typically run on 240 V, and…

A: Given:   Initial Power, P1 = 4461 W Initial Voltage, V1  = 240 V  Final Voltage, V2 = 120 V     To…

Q: A 750-kg electric car running solely on a 12.0-V battery attempts to scale a hilltop with a 200-m…

A: The potential difference, V; mass, m and gravitational strength, g are given as

Q: A household use the following electric appliances: 0)A Refrigerator of rating 150 w for twenty four…

A:

Q: ne 9-volt battery contains 19.7 thousand joules of energy.  A 4-pack of 9-volt batteries cost $10.31…

A: The energy in one battery E =19.7×103 J Total energy of 4 pack 9V battery is 4E The power is 1 Watt…

Q: A typical cost for electrical power is $0.120 per kilowatthour Suppose your refrigerator uses 400 W…

A: Let the power rating of the refrigerator be P and the cost of the electrical energy per…

Q: hind in he udh ahon from a cakmhing pokntiel cs 50 000V an X-H machine arhose

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Q: Refer to the figure. 12.0 V (a) Calculate P3 (in W). W ? V₁ = ? 1.80 Ω R₁ ww R₂ 6.40 Ω 1/2 = ? 1₂…

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Q: O. Complete the table below. Given Equivalent Opposite Direction Direction Direction 15°s of E 25° w…

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

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Q: It is often claimed that you should leave the heating system in your house on all the time rather…

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Q: How much Energy does a 100 W lightbulb use in 8 hours? If the time were doubled what would happen to…

A: Power of bulb = 100 W Time  = T = 8 hour

Q: 6. Calculate the cost (in cents) of using a 200 watt television for 30 days if turned on 2 hours per…

A: Power P = 200 watt No of days = 30 days Time t = 2 hours electricity rate

Q: A freezer that is never turned off draws an average current of 2.5 A when it is plugged into a 115 V…

A: given that,current, I=2.5 Avoltage, V=115 Vaverage cost of freezer $0.16 per kWh

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.