मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges? - Physics

Advertisements
Advertisements

प्रश्न

Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?

थोडक्यात उत्तर

उत्तर

When compared to an electron's charge, e = 1.6 x 10-19C, charges at the macroscopic level are huge. There are about 1013 electronic charges in just 1 nC of charge. Therefore, the quantization of electric charge is irrelevant at this high scale since charge might take on a continuous value instead of a discrete integral multiple of e. 

shaalaa.com
Basic Properties of Electric Charge
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Electric Charges and Fields - Exercise [पृष्ठ ४६]

APPEARS IN

एनसीईआरटी Physics [English] Class 12
पाठ 1 Electric Charges and Fields
Exercise | Q 1.4 (b) | पृष्ठ ४६
एनसीईआरटी Physics [English] Class 12
पाठ 1 Electric Charge and Fields
Exercise | Q 4.1 | पृष्ठ ४६

संबंधित प्रश्‍न

Explain the meaning of the statement ‘electric charge of a body is quantised’.


When a glass rod is rubbed with a silk cloth, charges appear on both. A similar phenomenon is observed with many other pairs of bodies. Explain how this observation is consistent with the law of conservation of charge.


Consider the situation shown in the figure. What are the signs of q1 and q2? If the lines are drawn in proportion to the charges, what is the ratio q1/q2


A point charge is taken from a point A to a point B in an electric field. Does the work done by the electric field depend on the path of the charge?


When a charged comb is brought near a small piece of paper, it attracts the piece. Does the paper become charged when the comb is brought near it?


In Figure 1 below, a charge Q is fixed. Another charge q is moved along a circular arc MN of radius r around it, from the point M to the point N such that the length of the arc MN = l. The work done in this process is: 

figure 1


A metallic sphere A isolated from ground is charged to +50 μC. This sphere is brought in contact with other isolated metallics sphere B of half the radius of sphere A. The charge on the two-sphere will be now in the ratio


Let x = πR`(("P"^2 - "Q"^2)/2)`, where P, Q and Rare lengths. The physical quantity x is ______.


Charge is quantized means ______.


Quantisation of charge was experimentally demonstrated by ______.

In annihilation process, in which an electron and a positron transform into two gamma rays, which property of electric charge is displayed?

The number of lines of force that radiate outwards from one coulomb of charge is:-


Eight dipoles of charge of magnitude ± e are placed inside a cube. The total electric flux coming out of the cube will be:-


A glass rod rubbed with silk is used to charge a gold-leaf electroscope and the leaves are observed to diverge. The electroscope thus charged is exposed to X-rays for a short period. Then ______


The dimensions of an atom are of the order of an Angstrom. Thus there must be large electric fields between the protons and electrons. Why, then is the electrostatic field inside a conductor zero?


Figure represents a crystal unit of cesium chloride, CsCl. The cesium atoms, represented by open circles are situated at the corners of a cube of side 0.40 nm, whereas a Cl atom is situated at the centre of the cube. 

The Cs atoms are deficient in one electron while the Cl atom carries an excess electron.

  1. What is the net electric field on the Cl atom due to eight Cs atoms?
  2. Suppose that the Cs atom at the corner A is missing. What is the net force now on the Cl atom due to seven remaining Cs atoms?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×