Calculate the luminance of the two lights having 1000 lumen of each and have been placed 30m apart from an incandescent?

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A: The National Electrical Code (NEC) is a set of rules that are often revised for the secure…

Q: If a voltage spike lasts for 1.5 nanoseconds, what is the frequency of the spike?

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Q: Explain Star connection with a neat diagram and equations.

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Q: It is desired to apply direct lighting by hanging a fluorescent luminaire with a luminous flux of…

A: To find the required number of luminaires following expression is used…

Q: Solve for the number of luminaires. The type of structure is an indoor basketball court having a…

A: It is given that: Length (l) = 40 feet Width (w) = 60 feet Height (h) = 17 feet ceiling cavity…

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: The coloring on individual conducting wires usually does not indicate a size or rating but rather…

A: The coloring on individual conducting wires usually does not indicate a size or rating but rather…

Q: What is the unit of Luminous flux, Illumination, Solid angle, Luminance and Lamp efficiency ??

A: When light falls on any surface this phenomena is called as Illumination. Where Light is the cause…

Q: What Is the opposite of redistance

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Q: Draw the block diagram of a solar Photo-Voltaic system with the stand by diesel generator and…

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Q: Which of the following shows the CORRECT unit of the lighting concept? a Illuminance: lumen (Im) b.…

A: The brightness seen by the human eye can be used to subjectively measure light. Candles, lumens,…

Q: In dwelling units, what is the most common wattage found in a 125 VAC incandescent dimmer?

A: It is asked about the most common wattage found in a 125 VAC incandescent dimmer.

Q: How many wavelengths are usually leased in a lit fiber lease agreement over two fibers? A. Four B.…

A: Answer:B Three

Q: Explain with the help of diagram how X-rays are produced?

A: X ray production   A current is gone through the tungsten fiber and warms it up.  As it is warmed…

Q: 1. Difference between Luminance and illuminance? 2. Difference between Lumen and Candela? 3. List…

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Q: To turn on all the LEDS with the instruction "OUT AL, 43", AL should be first set to AA 00 55 FF

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Q: 10. A bare conductor can withstand higher levels of current than an insulated conductor of the same…

A: Note: As per our policy we can solve only one question at once, please reupload the remaining as a…

Q: Draw wiring layout for controlling Lamp A and Lamp B by Switch AB .

A: This type of layout is used in top and bottom of a staircase at homes , corridors or wherever…

Q: Hi can you give me an answer about What is the difference between Primary and Secondary Lighting?

A: As per the rules we can answer only one question, please post the remaining questions as the…

Q: what is the star equivalent circuit

A: In this question we need to find its equivalent star circuit.

Q: A wastewater treatment plant's ac distribution operates at 600 volts ac. What is the peak value of…

A: Given, A wastewater treatment plant ac distribution operates at voltage Vrms=600 V

Q: whitch lamp has the highest lumens per watt? incandescent, LED or fluorescent

A: In this question ,we have to find out which lamp has highest lumen per watt..

Q: What ampacity must all branch-circuit conductors used for wiring a ceiling outlet box be de-rated…

A: Dear student as per our guidelines we are supposed to solve only one question .kindly repost other…

Q: How many wires must be run between an incandescent lamp and it's dimmer contorl?

A: According to question, How many wires must be run between an incandescent lamp and its dimmer…

Q: Question 27 To turn on all the LEDS with the instruction "OUT AL, 7B", AL should be first set to 7B…

A: Given OUTAL 7B So AL will assign 7B value

Q: QUESTION 46 HIRF is? A strong transmitted electromagnetic field. O The ability to detect…

A: Note: As per our policy we can solve only one question, please reupload the remaining question as…

Q: P.1. Approximately what percentage of visible light is given off by a 100 W incandescent lamp? A. 30…

A: Given 100 watt lamp  100W incandascent bulb produce 1600 lumen .

Q: G.1. Which type of fluorescent lamp is suitable for dimming applications? A. Instant start B.…

A: G.1. Which type of fluorescent lamp is suitable for dimming applications? Reducing the voltage of…

Q: high

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Q: Luminaires that are “Suitable for wet locations” are also suitable for: a. Damp locations b. Dry…

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Q: How many circuits are required to accommodate eight (8) 250w Metal Halide lamps?

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Q: Aircraft Lighting The resistance of an incandescent lamp ___________________ when it is operating.

A: Aircraft lighting system:

Q: Which of the following is used to resolve the dark features in the image?

A: By histogram specification, the dark features are simply resolved. However, power-law transformation…

Q: how many wires must be run between an incandescent lamp and its dimmer control

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Q: Unless specifically designated, all recessed incandescent luminaires (fixtures) must be provided…

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Q: How Know the Q is lasing leading to thow

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Q: Which of the following lamp types is generally the most energy efficient? A) Incandescent. C) High…

A: Since you have posted multiple different question. we will solve the any question for you. To get…

Q: All recessed incandescent luminaires must be equipped with factory - installed terminal protection,…

A: All recessed incandescent luminaires must be equipped with factory - installed thermal protection,…

Q: What are the superiorities of halogen lamps over tungsten filament lamps?

A: Halogen lights are very good for outside lighting as they are more energy-efficient than tungsten…

Q: 9. Refer to the graphic B. Answer the following question. What is the voltage at point B?

A: This question belongs to circuit theory . It is based on the concept of voltage division across the…

Q: For the inductive proximity switch shown below define the voltage level of the black colored wire…

A: 1) we can see 25 V supply given to sensor. Also from given we can see inductive sensor work below…

Q: Which is the correct current equation of Ix?

A: Apply  KCL at node connecting the resistor and current sources.  According to KCL sum of the…

Q: The current drawn by a 250-watts incandescent lamp operating at 120 volts is

A: Write the given values of power and voltage across the incandescent lamp.

Q: how many luminaires are required?

A: Here given amount of luminaries is of size 40ft by 20ft in meter 12.1m by 6m and as you mentioned…

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.