How can you charge your solar battery without a sun? Do you need a special charger for solar batteries? Or Can you charge solar light batteries in a charger? Yes, you can charge solar light batteries with a battery charger. Actually, you can charge any rechargeable battery with an alternate source. Solar batteries are just … Read more
The length of a 60 W, 240 ω light bulb filament is 60 cm. 1) If the potential difference across the filament is 120 V, what is the strength of the electric field inside the filament?2) Suppose the length of the bulb’s filament was doubled without changing its diameter or the potential difference across it. … Read more
Sufficient light, fresh air and enough space are essential for the safety and well-being of farm animals. In this blog, we explain how light affects the animals on the farm, which type of lighting is suitable for lighting the barn and how you can choose particularly efficient and sustainable light sources. The most important information … Read more
After a visit to the salon or hairdresser, customers want to leave the store satisfied and like to come back for the next cut. In this blog post we will show you how you can get the best out of your hairdressing salon with the right lighting concept and how you can improve your own … Read more
In the past, fluorescent tubes were good alternatives to incandescent lamps and halogens. But they have many disadvantages: They start slowly, flicker, make noises, have a short service life, and high energy consumption. That is why it is worth switching to LED. LEDs are not only much more efficient, but they also last up to … Read more
Who does not know it: The lamps in a luminaire never burn out at the same time. Nevertheless, we would like to continue to have sufficiently bright light. But replacing lamps that are still working sounds like unnecessary expenses and a waste of resources. But is that really it? We show you why you can … Read more
How many photons are contained in a flash of green light (525 nm) that contains 189 kj of energy? give your answer to 2 significant figures and in scientific notation. (1) 4.99×10^23(2) 7.99×10^30(3) 5.67×10^23(4) 1.25×10^31(5) 3.75×10^23 = 4.99e23 Photons Explanation: We know, c = f λ (Equation 1) Here, c = speed of light (m/s) … Read more
