capillary action

The magnetic field produced by a given current in the conductor decreases as the distance from it increases.

First law of motion

Thomas Edison

the moon is between the sun and the earth

As there is no medium inside the bell jar, sound cannot travel

If you are lifting stone vertically upwards then you have to do work against the Gravitational force on stone i.e. ‘mg’ and displacement will be equal to h. Thefore work done = mg×h (f×s). … If you consider frictional force then rolling the stone will require less force than sliding against the frictional force.

Charge is the basic property associated with matter due to which it produces and experiences electrical and magnetic effects .Coulomb’s Law is an important concept in static electricity. According to it , the force of attraction or repulsion between two point charges at rest is directly proportional to the product of magnitude of the charges and inversely proportional to the square of the distance between them. Also this force acts on the line joining the two charges.

Rocket engines are reaction engines. The basic principle driving a rocket engine is the famous Newtonian principle that “to every action there is an equal and opposite reaction.” A rocket engine is throwing mass in one direction and benefiting from the reaction that occurs in the other direction as a result.

Both the heating effect of current and hysteresis loss.

Very less

In series : E1 + E2 = K(50)

In parallel : E1 – E2 = K(10)

E1 + E2 / E1 – E2 = 5/1

=> E1/E2 = 3/2

The emf’s are in the ratio of 3:2.