ED light bulb uses energy of 3W.  What is the electrical energy is used if the light is on for 2 hours? A)34510 J B)21600 J C)92850 J D)62630 J

Q: 1. A 110-2 electric fan is connected to an electric outlet which has a voltage of 220 V. How much…

A: To determine: 1. The power generated by the electric fan   Given: Resistance, R=110 Ω Voltage, V=220…

Q: and a 15 ohm resistor are connected in parallel and placed across the terminals of a 15 volt…

A: Given: Resistance, R1=10 Ω Resistance, R2=15 Ω Voltage, V=15 V To find: a) Sketch the circuit…

Q: A digital clock has a resistance of 12,000 ohms and is plugged into a 115V outlet. a) How much…

A:

Q: An electric clothes dryer is rated at 4,000 W. How much energy does it use in 40 min?

A: Given that  An electric clothes dryer is rated at 4,000 W So, power = p = 4000 w Also time = t = 40…

Q: Use the information and table below to answer the following question. A student is studying…

A: Given Current used in Refrigerator = 4 A Current used in Microwave 8 A             Current used in…

Q: 25. If a lamp has a resistance of 120 Q when it operates at 100 W, what is the applied voltage? а.…

A: Power is defined as the rate at which work is done and it is given in watts. Power is required to…

Q: A power supply with a DC voltage of 5.0 V discharges 500.0 J of energy through a 25 Ohm resistor.…

A: The current through the resistor can be calculated using ohms law.

Q: There are approximately 103 million TVs in the United States. Each uses, on average, 76 W of power…

A:

Q: A laptop computer uses 75W of power in one hour. Electricity costs 5.6¢ /kW-h. Calculate how much it…

A:

Q: A smartphone consumes 4 watts of power when charging. Your power company charges 12 cents per…

A: Given: Power consumed by smart phones (P) = 4 watts. = 0.004 kWh. Charge of electricity (r) = 12…

Q: Given a circuit with a DC battery connected to a single resistor of resistance 3.00 Ohms. The…

A:

Q: An electric heater with a current of 6.0 A is connected to a 120 V source for 10 minutes.  a) How…

A: Current = I = 6 A Voltage = V = 120 V Time = t = 10 minutes = 600 s Part A. Energy used will be…

Q: Q1 A) A 70 W bulb is on for one hour. Find the energy converted in 1. watthours 2. watt seconds 3.…

A: Given data The power of the bulb is P = 70 W The duration of the bulb in which it is on is t = 1 h

Q: How much does it cost to operate a 1.2 kw heater for exactly 30.0 min if electrical energy costs…

A: Given: The power of the heater is 1.2 kw. The time duration of the uses is 30.0 min.

Q: For the circuit shown in the figure, determine the magnitude of the currents I2, I3, and 14 passing…

A: Given:- A circuit is given as  The values are  ε1=24 V ε2= 3.0 V ε3= 22.5 V ε4= 1.50 V R1= 39.0Ω…

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

A:

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

A: This problem is from electronics. Let's solve it by the definition of Power. Please have a good look…

Q: A person used his 1500 W air-conditioning unit for 5 h every day during the month of June. How much…

A: Given, A person used his 1500 W air-conditioning unit for 5 h every day during the month of June. In…

Q: Alfredo deDarke sleeps with a 7.5-Watt night light bulb on. He turns it on before getting in bed and…

A:

Q: Which of the following is the energy consumed by a 6 lightbulb when it is wired to a 9 V battery for…

A: Given : R = 6 ohms V = 9 V t = 20 seconds

Q: A lamp consumes 1000 J of electrical energy in 10 s. What is its power? L00

A:

Q: An electric kettle of 2200 W is used for 1 min. How much electrical energy is used

A:

Q: Charging a cellular phone for 2 hours usually requires 1,080 Joules. What is the power rating of the…

A:

Q: 4. In Question 3, what is the current in amperes if the voltage is halved and the resistance is…

A:

Q: An energy intensive appliance draws a power of 1200 Watts. Suppose it is left on for one whole day…

A:

Q: A coffee pot heat water with an electrical heater. The coffee pot is plugged into 120v wall socket…

A:

Q: if the current passes R1 is 25mA and the voltage at R2 is 25 V, what is the value of R2 ?

A:

Q: 7.) Suppose 10 mA of current is flowing through an electrical circuit.  How many Amperes are flowing…

A:

Q: if you turn on a 6w lamp how many seconds was it on if you applied 36000 j to it?

A: Power (P) = 6w Energy (E) = 36000J

Q: The 20-W LED bulb can provide the same amount of light output as the 100-W incandescent light bulb.…

A: Given Data : The Power of the LED bulb is given as P1=20W The Power of the incandescent bulb is…

Q: A flashlight, which uses a 3.0 V battery, is turned on for 2.0 minutes. If the current in the…

A: Given that-Battery Voltage, V= 3.0 VoltTime, t= 2 minutes= 120 secondsCurrent, I= 100 mA=0.100 A

Q: Which of the following scenarios would most likely result in your death? a. Touching the positive…

A: Touching the positive and negative terminals of a D battery is generally safe. This is because a D…

Q: Match the physical quantity to its appropriate unit(s). force heat, internal energy power electrical…

A:

Q: A 60-W incandescent light bull costs $0.41. An equivalent 18-W compact fluorescent (CFL) bulb costs…

A:

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

A:

Q: When three AAA 1.5-V batteries are connected in a flashlight, 0.34 A of current flows in the bulb.…

A:

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

A:

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

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: 5. A lamp draws a current of 1125 milliamperes and has a filament resistance of approximately 50.5…

A: According to Bartleby Q & A guidelines , I am supposed to answer only one question. i.e. Q5.…

Q: A student made the electromagnet shown and used it to pick up one sewing pin. She then doubled the…

A: Electromagnet