Electric current is ordered motion of charges. 

No. Uniformly rectilinear motion Non-uniform rectilinear motion i. The object is moving with constant velocity. The object is moving with variable velocity. ii. The average and instantaneous velocities are same. The average and instantaneous velocities are different. iii. The average...

No. In projectile motion, the horizontal and vertical motion are independent of each other because both motions don’t affect each other.

Correct option is: (B) (II) is correct.

Uniform circular motion, motion of a particle moving at a constant speed on a circle. In the Figure, the velocity vector v of the particle is constant in magnitude, but...

D) The positive ions of the metal conductor are in motion.

Given: r = 0.4 mm = 0.4 × 10-3 m, I = 2 A To find: Current density (J) Formula: J = \(\frac{I}{A}\) Calculation: From formula, J = \(\frac{2}{3.142\times(0.4)^2\times10^{-6}}\) = 3.978 × 106 A/m2

Given: I = 6 A, V = 230 V, t = 5 hours To find: Power (P), Energy consumed Formulae: i. P = IV ii. Energy consumed = power × time Calculation: From formula...

Given: I = 6 A, V = 220 volt, t = 2 hour To find: i. Power of heater (P) ii. Electric energy consumed (E) Formulae: i. P = IV ii. Electric energy consumed =...

B) (a) = non – uniform; (b) = uniform

B) Throwing stone into the air, making some angle with the horizontal