5 Mark Questions
1. (1) The electric field due to a point change at any point near to it is defined as:
where q is the test charge and is the force acting on it. What is the significance of lim in this expression?
(2) Two charges each but opposite in sign forms a system. These charges are located at points A (0,0, -10) cm and B (0,0, +10) cm respectively. What is the total charge and electric dipole moment of the system?
2. (a) Sketch electric lines of force due to (i) isolated positive change (ie q>0) and (ii) isolated negative change (ie q<0)
(b) Two point changes q and –q are placed at a distance 2a apart. Calculate the electric field at a point P situated at a distance r along the perpendicular bisector of the line joining the charges. What is the field when r >> a?
Ans.
Download Chapter 1 The Electric Charge and Fields notes pdf (Physics)
Chapter 1: Electric Charges Fields
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Mohd Sharif
Mohd. Sharif Qualification: B.Tech (Mechanical Engineering) [Founder of Wisdom Academy] [Aim Foundation & Free-Education.In] [Engineer By Profession | Teacher By Choice] [Blogger, YouTube Creator]
