The electrostaic potential of a charged body representsthe degree of electrification of the body. It detemines the direction of flowof charge betweentwo chargedbodies placed in contact with eachother. Charegealways flows a body at higher potentialto anotherbody at lower potential. The flow of charge stopsas soonas the potentials of the two bodies become equal. Electrostatic potential in electrically corresponds to levelin case fo liquids ,pressure in case of gases and temperaturein case of heat. Due to a pointchargeq in air, electrostatic potentials at a distance r from the charge is V = (q)/(4pi in_(0) r) The SI unit of potential is volt. Read the above passage and answer the follwing questions : (i) The capacity of a bodyA is 100 timesthe capacity of body B and charge on A is 10 times the charge on B. When A and B are put in contact with eachother, will charge flow from A to Bto A ? Why ? (ii) Calcualte the potential in air at a point 1 meter away from chargeof 1muC. (iii) What values of life do yo+-earnfrom theconcept of electric potential ?

The electrostaic potential of a charged body representsthe degree of e

1.	The electrostaic potential of a charged body representsthe degree of electrification of the body. It detemines the direction of flowof charge betweentwo chargedbodies placed in contact with eachother. Charegealways flows a body at higher potentialto anotherbody at lower potential. The flow of charge stopsas soonas the potentials of the two bodies become equal. Electrostatic potential in electrically corresponds to levelin case fo liquids ,pressure in case of gases and temperaturein case of heat. Due to a pointchargeq in air, electrostatic potentials at a distance r from the charge is V = (q)/(4pi in_(0) r) The SI unit of potential is volt. Read the above passage and answer the follwing questions : (i) The capacity of a bodyA is 100 timesthe capacity of body B and charge on A is 10 times the charge on B. When A and B are put in contact with eachother, will charge flow from A to Bto A ? Why ? (ii) Calcualte the potential in air at a point 1 meter away from chargeof 1muC. (iii) What values of life do yo+-earnfrom theconcept of electric potential ?
Answer» Solution :(i)`V_(A) = (q_(A))/(C_(A)) and V_(B) = (q_(B))/(C_(B)) :. (V_(B))/(V_(A)) = (q_(B))/(C_(B)) xx(C_(A))/(q_(A)) = (C_(A))/(C_(B)) xx (C_(A))/(q_(A)) = 100xx (1)/(10) = 10` `V_(B) gt V_(A)` `:.` CHARGE wouldflow fromB to A, as potentialof B is greater than POTENTIAL of A. (ii) From `V = (q)/(4pi in_(0) r) = ((10^(-6))xx9xx10^(9))/(1) = 9xx10^(3)` volt. (iii) The concept of potential emphasises taht chargesflowsfrom a body at higherpotential to a body at lowerpotential . In dayto day life, knowledgeflows from a personof higher learninglevelto thethe person of lowerlearninglevel. If we happen to havesome health problem, we mustalways seek the opinion of asuper specialistin the field concerned. The knowledge and INFORMATION the super specialist have is of muchhigher level. The line of treatmentadopted by himis going to cure us. The QUACKS who might have more knowledge of avariety of other fields SHALL be of no use.

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