attery-powere turns it off. How does the energy of the flashlight and battery system compare before and after it has been turned on and off? Choose 1 answer: A The system's energy decreased because some energy was converted into light. The system's energy increased because some energy was converted into light. The system's energy did not change because some energy was converted into light.

Q: How does a night light can be implemented using a light-dependent resistor?

A: Given: LDR is nothing but a photosensitive device used mostly on outdoor lights or street light to…

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Q: A student connects three identical light bulbs in parallel to a dry cell as shown below. What…

A: In parallel connections of electric component, voltage across electric component is same.

Q: 1. Three identical lamps are connected in series to a 12-volt battery. What is the voltage drop…

A: Given data: 1.  Voltage: V=12 V 2.  Resistance of each resistor: R=50 Ω 3.  Resistance: R1=2.00 kΩ;…

Q: 14 Parallel conductive plates are connected to the constant voltage generator as in the figure.…

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Q: A generator produces 250 kW of electric power at 7.2 kV. The current is transmitted to a remote…

A: Given that:-Power loss, Ploss= R·I2Generator current ( RMS Value), Igen=PgenVgen     then, Power…

Q: 1. Tifanny is trying to get a light to burn brighter by increasing the current in its circuit. Would…

A: Answer (1) No , adding a resistor in series with the bulb doesn’t allow it to light brighter…

Q: In the Power Transfer experiment, which of the following is true during the experiment? O a. The…

A: Dissipation of power: Electrical energy is lost as heat when current flows through a resistor. That…

Q: A841W heater is connected to a 110V line. Calculate the heat energy it produces in 1.3hrs (in M.J).…

A: Power, P = 841 WVoltage, V = 110 VTime, t = 1.3 hrs = 1.3×3600 s = 4,680 sHeat energy, H = ?

Q: Part II. Kirchhoff's Laws in 3 loops. a. Find the necessary KVL/KCL equations to solve the problem.…

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Q: Note: By Ohm's law V = IR 1 = V/R = 0.9 MA Assuming the direction of the current Add the…

A: The data given in the question is: R1=3 kΩR2=10 kΩR3=5 kΩVs=9 V From the way battery is connected in…

Q: What is the power output, by the 260v battery, & At what rate is the electrical eningy being…

A:

Q: A string of 25 identical Christmas lights is connected to a 120 V source. The string dissipates 175…

A: Given Data:- Number of lights in the string is n=25 Voltage of the source is V=120 V Power…

Q: 3.2 Circuit A2 R = 100 E= 12 V R- 40 R,= 50 Figure 5:

A: 1. Analysing the circuit, the equivalent resistance.   1Req=1R1+1R2+R3=15+114Req=7019Ω

Q: When EMT is installed in wet locations, all supports, bolts, straps, and screws shall be _____.   a.…

A: "Since you have asked multiple questions, as per Bartleby's guideline we will answer only the first…

Q: 9a,b

A: Part A :Work done by the system is given by  :

Q: How many kW.h of energy will a 400 W television set use in one month, if it is turned on for an…

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 solar panel is operated at its open-circuit voltage (operation voltage = open-circuit voltage = 48…

A: Given  open-circuit voltage = 48 volt   we have to find out the delivered power

Q: What will be the value of I from the given figure below? O 0.5 A O 0.4 A O 0.7 A O 0.6 A 0.2A I…

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Q: 8) (5 pts) In the following figure, what will happen to the brightness of bulbs A and B if C is…

A: Solution of above question given in below step. option A is RIGHT

Q: In a sunnier location than Eugene, the sun shines for an average of 2000 hours per year. A home…

A: Given that-Sunshine hours in a year, t= 2000 hoursPower generated by solar panels, P= 3.5 kWWe know…

Q: Question: Choose the correct answer consi der(V=20v,R1-300O,R2-4000,R3-5000)for the electric circuit…

A: SOlution: Given that V = 20 V R1 = 300 Ohm R2 = 400 Ohm R3 = 500 Ohm

Q: What is the power that's dissipated through the resistor in the image given (in W). a. 2 b.4 c.…

A: Given value--- R = 60 ohm. V = 30 V. We have to find--- power dissipated?

Q: A television uses an electric generator to work.

A: False

Q: 1: Suppose you have 10 light bulbs each of 100 Watt at your home. All of them are used for 6 hours…

A: 1.We know that, Energy=power×time To calculate the cost of energy for electrical energy…

Q: Detector A is 10 m from a light bulb. Detector A measures the power of the light bulb to be 100 W.…

A:

Q: Why is an electromotive force not a “force”? Justify your answer.

A: Electromotive force is the potential difference between the terminals of the cell when no current is…

Q: Q2. An alternating voltage given as V=100 v2 sin100t is applied to a capacitor of 1µF. Calculate the…

A: The given values are listed below. V=1002sin100tC=1 μF=1×10-6 F Here, V is the alternating voltage…

Q: A capacitor has a potential difference of V0 = 375 V between the plates. When the switch S is…

A: Given:            V0= 375 V            R= 14.5 kohm             t= 10 sec            Vc= 1V

Q: the electrical-mechanical analogy, the reciprocal of the capacitance of the capacitor corresponds to…

A: It is possible to make electrical and mechanical systems using analogs. An analogous electrical and…

Q: A student claims when they use their space heater and hairdryer at the same time, the power for the…

A: When both space heater and hairdryer are ON at the same time,the power of the same time the power…

Q: In the Power Transfer experiment, which of the following is true during the experiment?

A: In power transfer experiment, When the resistance of the load becomes equal the resistance of the…

Q: 5. If you want to turn mechanical energy into electrical energy to power the lights in your home,…

A: To Do: Identify the correct device out of the given options for converting mechanical energy into…

Q: Detector A is 10 m from a light bulb. Detector A measures the power of the light bulb to be 100 W.…

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Q: How do you measure the power output of the solar cell? O a. By looking at the brightness of the LED…

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Q: A light bulb uses up a power of 2.6 kW/hr. If the rate is $153.42 per 1 kW/hr, and the light was on…

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Q: A PHILIPS brand of electric mixer is operating at 175 Watts. How much are you going to pay in 1…

A: Given, Power of electric mixer (P) = 175 W  Electric mixer used  30 min per day for 30 days  Rate/…

Q: 2 A student used a 9 kW shower for 20 minutes. Electrical energy costs S0.30 per kW h. What was the…

A: Answer (2)  Given  Power (P) = 9 KW  Time (T)  = 20 minute                 = (20/60) h  Electrical…

Q: You want to use two light bulbs to light a room but only have one battery to power them. The…

A: