What is the pressure if a force of 200 n is applied over an area of
50 cm2?
a. 4 n/cm2.
b. 0.24 n/cm2.
c. 10,000 n/cm2.
d. 150 n/cm2

The pressure is .

Option A

Explanation:

Pressure defines the force acting per single area. So depending upon the amount of force acting over a given area in the perpendicular direction of the object, the pressure acting on that area will vary.

So the pressure is directly proportionate to the applied force on a particular region and inversely proportionate into the areas of the region. Hence, the unit of pressure is considered as   or Pascal. Pressure can also be termed as the number of air molecules present in a specified closed region. Thus, for the present condition

Thus, by appling the given values in the above equation, we get,

              =  

So the pressure is .

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

d eras and periods