Yes, the CBSE board exam datesheet for Class 10 and 12 has been officially released. The exams are scheduled to commence on February 15, 2025. Students can access it from the CBSE website and Tiwari Academy official website.
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Benjamin Franklin invented the lightning conductor in the 18th century. His invention provided a method to protect buildings and structures from lightning damage by safely directing the electrical discharge into the ground.
Lightning conductors are made of copper because it has excellent electrical conductivity and resistance to corrosion. Copper effectively channels the electrical discharge from lightning safely into the ground, protecting buildings and structures from damage.
The resistance of the filament is more than that of the wires. The filament glows because its high resistance causes it to heat up and emit light when current flows through it. In contrast, the wires have much lower resistance, ...
The non-metal that is not a poor conductor of electricity is selenium. Unlike other non-metals such as sulfur, bromine, and phosphorus, selenium has the ability to conduct electricity, especially in its crystalline form. This property makes selenium useful in various ...