Two large light bulbs of 200 watts each are in a fixture. The bulbs have an efficiency rating of 42 candle power / watt. Find the following: Total candle power of the fixture Illumination on a surface 10' - 6" away Luminous flux in the room

Q: The amount of electrical power being used in a circuit is measured in ____.   Select one: A. OHMS…

A:

Q: Quizzes You have a photocelled controlled LED night light with the following information: • It draws…

A: In this question we need to find a energy used by photocell controlled night light in one year.

Q: . It is one of the ratings in a device which indicates the amount of watts consumed by the device. *…

A: 1.Answer:B  Power Because power(P) tells the amount of watts consumed by the device in a given time.…

Q: The number of free electrons passing through the filament of an electric lamp in one hour when the…

A: Given, Current through filament, I=0.32 A Time, t = 1 hour = 3600 second Charge on electron,…

Q: Which of the, following vapors/gas will give yellow color in a filament lamp? a. Mercury b. Helium O…

A: The solution is provided in the following section:

Q: Technician A says a battery converts chemical energy into electrical energy. Technician B says a…

A: Technician A is correct.  A battery converts chemical energy into electrical energy, as the chemical…

Q: If there are 10A of direct current through the filament of a light bulb, how many coulombs have…

A:

Q: Q10: mentioned the purpose of the following:: 1-Halid torch 2-Refrigerator lamp

A: 1) Halide torch: A halide torch is a device to detect the leakage of halo-carbon refrigerants. It…

Q: The current can be measured in Coulomb/sec or F.Volt/sec, where F Refers to Farad. Is it True or…

A: Ans. True

Q: Question 23 An electric circuit is set up as indicated in the diagram. The resintance of each of the…

A: Given :   Note : It is the kind notice that other according to the guidelines of the company ,if the…

Q: find the power absorbed by the 3 ohm and 5 ohms

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Q: If the required lux is 1000 lux in the room. determine the number of light fixture required if the…

A: The solution can be achieved as follows.

Q: 7. A 100 W incandescent lamp has a resistance when cold (lamp extinguished) that is only 1/12 of its…

A: Given: Power, 100 W Voltage, 120 V To find: a) Lamp current b) Cold resistance c) Instantaneous…

Q: Which of the following resistors, if connected across a 10 volt battery, dissipated the most power?"…

A: We will first calculate the current across the each resistor. The calculation is shown below: The…

Q: A 60 ohms bulb is connected to a 220V source for 1 hours. How much energy is taken from the source?

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q: What is the minimum size generator (in Watts) that would be capable of running a refrigerator, large…

A: There are various appliances is available in the market of their  different-different rating. And…

Q: An electric kettle working at 220 V heats upto 2 liters of water from 20 °C to 100 °C in 2 minutes.…

A:

Q: Can you please find the current in each wire and each battery?

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Q: You have an old desk lamp which you use for studying. You decide to replace the old filament globe…

A: Given, x=80 W y=6 W z=2 h electricity cost=R2kWh

Q: What are the two factors that can disrupt the power supply

A: In this case, the two factors that can disrupt the power supply needs to be discussed.

Q: What will be the resistance (in ohms) of a lamp rated at 220 V, 200 W ?

A: Given a lamp having, Rated Power, P = 200 W Rated Voltage, V = 220 V

Q: A conductor has a conductance of 70μS is used to supply a load. Find its equivalent resistance.…

A: Q.21) ans  (d) 14.3 K ohm  Since conductance is defined as reciprocal of resistance . R = 1/G

Q: Luminaire lamp with power (80 w) working at voltage (220 V) working temperature ° Fuse to (1500 m…

A: The resistance of the luminaire lamp is determined as:

Q: 25 - Which lamp has the lowest efficiency? A) Fluorescent B) Sodium-vapor C) Metal halide…

A: 25 - Which lamp has the lowest efficiency?

Q: Three electric resistance heaters of length L = 250 mm

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Q: A lamp draws a current of 120 milliamperes and has a filament resistance of approximately 55 ohms.…

A:

Q: What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 2? 150…

A: Given a electric heater having, Power rating, P = 1 kW Resistance, R = 40 Ω

Q: An electric kettle is marked 500W, 230V and is found to take 15 minutes to bring 1 kg of water at…

A: Given: Electric kettle specifications, 500 W and 230 V Time, t=15 minutes=900 seconds Mass of water,…

Q: Which object converts electricity to light?   A) Solar panels B) Battery C) Bulb D) All the…

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Q: if a dc generator delivers 180w to a load, what is the minimum hp needed to drive the…

A: if a if a dc generator delivers 180w to a load, what is the minimum hp needed to drive the…

Q: The filament of a 240V metal filament lamp is to be constructed from a wire having a diameter of…

A:

Q: .Explain with neat diagram of any one solar energy thermal application.

A: Solar Energy Thermal Application:

Q: In a circuit, 3200J of work was done to draw 9A of current in 45 minutes. Calculate the EMF of the…

A: Write the given values in the question.

Q: Which one of the following Device converts electrical energy in to light energy? a. Oven b.…

A: In this question we will write device which converts electrical energy to light energy...

Q: Which one of the following is used to store electrical energy? a. Oven b. Fan c. Battery d. lamp

A: Oven, fan,lamp are electrical component which require electeical energy to operate.

Q: The power rating of a light bulb is the power it dissipates when connected across a 120 volt…

A: Given: Rated power of bulb, P=30 W Potential difference, V=120 V

Q: Explain the electrical scenarios briefly 1. Aluminum Wiring

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: . An electric motor has an apparent resistance of 15 Ω. If 8 A of current are flowing through the…

A: Resistance R=15 ohm current I = 8 A connected voltage can be calculated as; V=I×RV=15×8V=120 Volt

Q: Which one of the following uses high temperature of about 6000F to produce electricity? a. Wind b.…

A: According to the question we have to discuss the temperature during produce electricity.

Q: In a circuit, 2000J of work was done to draw 6A of current in 30 minutes. Calculate the EMF of the…

A:

Q: Q.No.1. For the circuit given below, the meter reads 7.84 mA when the switch is in position A. What…

A: We need to find current for given circuit .

Q: Find the last 3 color bands of a resistor whose ohmic values ranges from 4,140 ohms to 5,060 ohms

A: Range of the resistor 4140 to 5060 The band displayed on the resistor indicates the value of the…

Q: ten electric heaters, each taking 200 watts were used to dry out on site on electric machine which…

A: Given that  Power rating of each heater  is 200 w Time of usage t= 60hrs V= 240 v Cost C =…

Q: An electric heater consumes 1.8MJ when connected to a 250 V supply for 30 minutes. Find the power…

A: Energy= Power *time. 1 w-s=1 Joule. Power rating= Voltage*current .

Q: A copper wire supplying the heater in Problem 5 will be 6 ft long. What gauge is required if the…

A: The table of the copper wire for the resistivity in ohms/1000 ft is shown below:

Q: 4 A 2V 2 V

A: So we have to find if the left box is absorbing power or supplying the power.

Q: 15. An AC ammeter set at 10 A is connected in series with the lamp which is busted/open. What is the…

A: The electrical instruments are used for measurement purposes of various parameters. The various…

Q: The voltage across a light is 100V with a current of 1A for 10 hours. How much energy is used?

A:

Q: What will be the resistance (in ohm) of a lamp rated at 220 V, 200 W ?

A:

Q: 6.1 A Car battery is rated for 12 Volts, 5 Ah rechargeable battery can be operated for about 10…

A: Given, A battery with V=12 VQ=5 Aht=10 h