Difference between Valve and Transistor
S.N Valve S.N Transistor 1. The charge carriers of valves are electrons. 1. The carriers of the transistors are the electron and holes. 2. In...
Characteristics of Diamagnetic, Paramagnetic and Ferromagnetic substances
A) Diamagnetic Substances and its characteristics Diamagnetic substances are those substances which, in their normal states, have no magnetic moment at all. Antimony, Bismuth, Copper,...
Characteristics of α-radiation, β-radiation and γ-radiation
A) α-radiation The α-rays are not rays, but consist of a stream of positively charged particles, having 2 units of positive (+) charge, and 4...
Archimede’s Principle
When a solid object is immersed in a fluid, an upward force acts on it. The magnitude of the force is given by Archimede’s principle....
Defects of vision
The disorder in which a person cannot see nearby or distant objects clearly is called defect of vision. There are two most common defects of...
Transformer and its structure
It is a device that converts high voltage AC to low voltage AC of the same frequency and vice versa. It works on the principle...
Differences between alternating and direct current
S.N Alternating current Direct current 1. The current which changes magnitude and polarity is called alternating current. The current which does not change magnitude and...
Differences between convex and concave lens
S.N Convex lens Concave lens 1. It is thick in the middle but thin at the edges. It is thin in the middle but thick...
Differences between heat and temperature
S.N Heat Temperature 1. It is a form of energy which gives us sensation of warmth. It is a measure of degree of hotness or...
Differences between mass and weight
S.N Mass Weight 1. The amount of matter contained in a body is called mass. The force by which earth attracts or pull objects towards...