The unit of pressure in SI is MCQ with Answer and Explanation

Explanation:
The work done by the electric field on a charged particle is completely converted into kinetic energy. Work = q * V, where q is the magnitude of the charge and V is the potential difference. Since both an electron and a proton have the exact same magnitude of charge (e = 1.6 x 10^-19 C), they acquire identical kinetic energy (eV).

Explanation:
Lamination of core increases resistance to circulating eddy currents, reducing eddy current losses (I²R). Hysteresis loss reduced by using soft iron. Copper loss is in windings. Lamination is insulation between layers.

Explanation:
Polarized sunglasses use polarizing filters to block horizontally polarized glare reflected from surfaces (water, roads). LCD displays use liquid crystals to rotate polarization, controlling light transmission through polarizers. Memory tip: 'Polarization applications: glare reduction (sunglasses), display technology (LCDs), 3D movies'. This application question tests wave optics uses, frequently appearing in competitive exams. Always link physical principles to everyday technologies; competitive exams emphasize practical relevance of physics concepts, making abstract phenomena tangible through common devices.