An electromagnet is made by MCQ with Answer and Explanation

Explanation:
Isaac Newton: three laws of motion, universal gravitation, calculus, optics. Relativity: Einstein; EM theory: Maxwell; Quantum: Planck/Bohr. Memory tip: 'Newton = classical mechanics foundation'. Scientist-discovery association frequently tested in competitive exams.

Explanation:
P = V×I = 220 × 5 = 1100 W = 1.1 kW. Energy consumed in 2 hours = 2.2 kWh. Simple.

Explanation:
While Faraday performed the groundbreaking experimental work discovering electromagnetic induction, it was James Clerk Maxwell who formalized these discoveries mathematically. Maxwell's equations (a set of four differential equations) elegantly united electricity, magnetism, and optics, proving theoretically that light itself is a propagating electromagnetic wave.