The work done in moving a body along a closed path in a conservative force field is MCQ with Answer and Explanation

Explanation:
Impulse = Force × time = change in momentum. Momentum = mass × velocity, dimensions [M][LT⁻¹] = [MLT⁻¹]. Force dimensions [MLT⁻²], multiplied by time gives [MLT⁻¹]. Same as momentum.

Explanation:
I = V/R = 5/10 = 0.5 A. Ohm's law. Simple calculation. Power P = V×I = 2.5 W.

Explanation:
The total energy of an electron in a hydrogen-like atom in the nth orbit is strictly negative and given by the mathematical formula E_n = -13.6 Z^2 / n^2 (in eV). This formula demonstrates that the total energy is inversely proportional to the square of the principal quantum number (n^2).