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Electric Potential Due To A Point Charge Electric Potential Due To A Point Charge :- Let us consider a point charge +Q placed at a fixed point O in space. We want to calculate the electric potential V at a point a P located at a distance r from this charge. By definition, electric potential…
Electrostatic Forces Are Conservative Electrostatic Forces Are Conservative :- Conservative force are those force in which work done by the force or against the force does not depend on the path followed but only depends on the initial and final positions. In other words the work done in closed path is zero. To prove…
Electrostatic Potential Electrostatic Potential :- Before discussing electrostatic potential at a point, first we define electric potential difference because only differences in potential can be measured directly, not the absolute potential itself. The reason for that is : Electric Potential, just like gravitational potential, is relative. We need a reference point (usually taken at…
Electrostatic Potential Energy Electrostatic Potential Energy :- Just like gravitational potential energy of a mass in a gravitational field, we can derive an expression for electrostatic potential energy of a charge in an electric field. Let us assume that a charge +Q is placed at the origin which produces electric filed . Let a…
A particle is performing SHM with amplitude A & time T then maximum Average velocity for time interval T/4 Question :- A particle is performing SHM with amplitude A & time T then maximum Average velocity for time interval T/4. (A) (B) (C) (D) Solution :- According to question we have to find “maximum”…
A particle of mass m moving with speed u collides elastically with a sphere of radius r Question :- A particle of mass m moving with speed u collides elastically with a sphere of radius r and same mass at rest, at an impact parameter b. Find (a) Angle between their final velocities and (b)…
Types of collision Types of collision :- There are three ways in which collision can be categorized :- (a) Based on Line of Impact Central collision/Impact Eccentric collision/Impact (b) Based on Energy Conservation Elastic Collision Inelastic Collision Perfectly Inelastic Collision (c) Based on direction One-Dimensional (1D) Collision or Head on collision Two-Dimensional (2D) Collision…
the de broglie wavelength of a photon is twice the de broglie wavelength of an electron Question :- the de broglie wavelength of a photon is twice the de broglie wavelength of an electron. The speed of the electron is ve = c/100. Then – Solution :- According to question, λp = 2λe ,…
Principle of Calorimetry Principle of Calorimetry :- According to the principle of calorimetry if no heat is lost to the surroundings then heat lost by a hotter body is equal to the heat gained by a colder body. This principle is based on the law of conservation of energy, which states that energy cannot…
कैलोरीमिति का सिद्धांत कैलोरीमिति का सिद्धांत :- कैलोरीमिति के सिद्धांत के अनुसार यदि परीवश (surroundings) में ऊर्जा की हानि ना हो तब उच्च ताप वाली वस्तु द्वारा मुक्त ऊष्मा निम्न ताप वाली वस्तु द्वारा अवशोषित ऊष्मा के बराबर होती है । यह सिद्धांत ऊर्जा संरक्षण के नियम पर आधारित है, जिसके अनुसार ऊर्जा को ना…