scalar

Summary - Motion: Whenever a body changes its position continuously with respect to the position of other bodies around it then it is said to be in motion. Rest: An object which does not change its position with respect to its surroundings is said to be at rest. Distance: It is the actual length of..

(1) A x I = I x A = A where I denotes a unit matrix of suitable order. Matrix I possesses identity property of multiplication, I is called a unit matrix or identity matrix. (2) , it does not have commutative property. (3) A(B + C) = AB + AC (Distributive property) (4) A(BC) = (AB)C (Associative..

Electric potential is the condition that determines direction of flow of charge. Electrical potential at a point in an electric field is defined as the amount of work done in bringing a unit positive charge from infinity to that point. Electrical potential is a scalar quantity. The po..

Suppose a bus starting from a terminus A travels 15000 m to reach terminus B. Then the distance covered by the bus is 15000 m. Now if the bus returns to the terminus A, then what is the distance covered by the bus during the return trip? The distance covered is 15000 m. But the total distance cover..

d) If an object has a variable speed such that the speed varies at different instants, then the speed at any instant is called the instantaneous speed. If at an instant t, an object covers a distance D s in a small interval of time D t so that D t g 0 [i.e., D t approaches zero] then, The speed is ..

Consider a car and a bicycle moving at the same velocity. Now, if you could somehow use the same brake system on both vehicles, the bicycle will stop first. Why do think so? Is it because the bicycle is lighter? Yes, it is because the bicycle is lighter. This makes us think of a new property of a b..

Magnetic flux can be defined as the number of lines of force passing through a surface normally. Considering the surface ' D s' in a magnetic field 'B..

Summary - Electric potential is the condition that determines the flow of charge. Electrical potential at a point in an electric field is defined as the amount of work done in bringing a unit of positive charge from infinity to that point. Electrical potential is a scalar quantity. The po..

The gravitational field intensity at a point is defined as the force experienced by a unit mass placed at that poin..

Ampere's law is a useful relation that is analogous to Gauss's law. Ampere's law is a relationship between the tangential component of magnetic field at points on a closed curve and the net current through the area bounded by the curve. Ampere's law is formulated in terms of the line integral of ..