How do you measure the lumen output of an LED?
A workshop measures 10m × 25m. The shop is illuminated by 24 lamps of 200 watts each. The lumen efficiency of each lamp is 15 lumens per watt. Depreciation factor is assumed to be 0.8 and a coefficient of utilization 0.5. Determine the illumination on the working plane.
Compare the salient features of mercury vapour lamp and sodium vapour lamp based on (i) lamp efficiency (ii) lumen output.
What is a LED high bay light?
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How do you select a driver for a high-power LED?
What is the difference between a high-power LED and a low-power LED?
What is a high-brightness LED?
What is the difference between a standard LED and a high-power LED?
How does an LED behave under high temperatures?
What is a high-pass active filter?
What is a high-pass filter?
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What is a high-frequency transformer? Answer : A **high-frequency transformer** is a type of transformer that operates at much higher frequencies than traditional transformers. While regular transformers typically work at the standard ... conversion and signal processing, offering a compact and efficient solution for high-speed applications....
What are the characteristics of a high-efficiency power supply?
What are the challenges in designing a high-frequency SMPS?
What is a layout guideline for high-frequency circuits?
What is a high-voltage transmission line?
How does a MOSFET's drain-source capacitance impact its high-frequency performance?
How does a flash ADC achieve high-speed conversion?
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What is the function of a bootstrap capacitor in a high-side driver?
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How does a high impedance differential protection scheme work?
What is the purpose of a bleeder resistor in a high-voltage power supply?
What is the difference between a low-pass and high-pass filter?
How does skin effect impact the resistance of a conductor at high frequencies?
What is the purpose of a high-pass filter?
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How does a spin-transfer nano-oscillator generate high-frequency signals?
What is the purpose of a T-coil in high-speed circuits?
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How does a high-impedance differential protection scheme work?
Why the reactance of a system under fault condition is low and faults currents may raise dangerously high value. ? (With simple example)
Why is the starting current high in a DC motor?
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