Fundamental Forces in nature (Gravitational, Electromagnetic, Nuclear and Weak Force)

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Fundamental Forces in nature     Fundamental Forces :- All the forces observed in nature such as muscular force, tension, reaction, friction, elastic, weight, electric, magnetic, nuclear, etc., can be explained in terms of only following four basic forces :- (1) Gravitational Force (2) Electromagnetic Force (3) Nuclear Force (4) Weak Force (1) Gravitational Force The…

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Class 11th NCERT

बल के मात्रक

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बल के मात्रक     बल के मात्रक :- SI प्रणाली:- न्यूटन ( kg-m/s2 ) CGS प्रणाली:- डाइन ( g-cm/s2 ) न्यूटन व डाइन मे सम्बन्ध:- 1 न्यूटन = 1kg-m/s2 = (1000g-100cm)/s2 = (105) (g-cm)/s2 = 105 डाइन अन्य मात्रक :- किलोग्राम बल :- एक किलोग्राम द्रव्यमान की वस्तु को पृथ्वी जिस बल से अपने…

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Class 11th NCERT Hindi

बल की संकल्पना

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बल की संकल्पना     बल की संकल्पना :- बल वह कारक है जो स्थिर वस्तु को गतिशील या गतिशील वस्तु की स्थिति में परिवर्तन करता है अथवा ऐसा करने का प्रयास करता है। या दूसरे शब्दों में … बल वह भौतिक राशि है,  जो किसी वस्तु में त्वरण उत्पन्न करे अथवा  त्वरण उत्पन्न करने…

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Class 11th NCERT Hindi

Form of Coulomb’s Law when Dielectric is filled partially between the charges

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Form of Coulomb’s Law when Dielectric is filled partially between the charges     Coulomb’s Law with partially filled Dielectric between the charges :- Suppose two charge particles q1 and q2 are placed r distance apart in vacuum, then from Coulomb’s Law force acting between them:- Now let a dielectric medium ( of permittivity εr…

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Class 12th NCERT, Videos

Electrostatic Equilibrium of charged particles

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Electrostatic Equilibrium of charged particles Electrostatic Equilibrium:- In equilibrium net electric force on every charged particle is zero. The equilibrium of a charged particle, under the action of Colombian forces alone can never be stable. Equilibrium is of three types:- (a) Stable Equilibrium : A charge is initially in equilibrium position and is displaced by…

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Class 12th NCERT

COP(Heat Pump)=COP(Refrigerator)+1

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COP(Heat Pump)=COP(Refrigerator)+1

COP(Heat Pump)=COP(Refrigerator)+1 Heat PUmp: Heat pump is a device that transfers heat from a colder area to a hotter area by using mechanical energy, as in a refrigerator. In heat pump how much heat is rejected at higher temperature is an important quantity. Coefficient of performance of Heat Pump    ⇒    ∴ ……….(1) Refrigerator:…

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Class 11th NCERT, Videos
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