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Which one the carrier of charge in case of solid, liquid and gas write down the mechanism of current flow by deriving different velocity in a conductor .

Posted by Chandu Mandal 10 months ago

CBSE > Class 12 > Physics

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What two differences between para ,dia and ferromagnetic materials,giveing one example for each

Posted by Punit Meena 10 months ago

CBSE > Class 12 > Physics

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Shivansh Chaurasiya 10 months ago

Ferromagnetic materials are strongly attracted to both poles of magnets. Paramagnetic materials are weakly attracted to a single pole. Diamagnetic materials repel both poles of magnet

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Explain why? 1) 500 joules of work is done on a gas to reduce its volume by compression adiabatically.what is the change in internal energy of the gas?

Posted by Lakshmi Prasanna 10 months, 1 week ago

CBSE > Class 12 > Physics

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Rahul S 10 months, 1 week ago

In thermodynamics, the first law (which is essentially the law of conservation of energy) states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system on the surroundings. Mathematically, it is written as: ΔU = Q - W - ΔU is the change in internal energy of the system. - Q is the heat added to the system. - W is the work done by the system on its surroundings. For an adiabatic process, no heat is exchanged with the surroundings, which means Q = 0. Therefore, the equation simplifies to: ΔU = -W However, in this case, you are compressing the gas, meaning you are doing work on the gas, not the other way around. The sign convention for work in thermodynamics can be a bit counterintuitive: work done on the system is considered positive, and work done by the system is negative. Therefore, the work you've done on the gas, 500 joules, is positive from the perspective of the gas. So, for the gas being compressed adiabatically: W (on the gas) = 500 joules Therefore, the change in internal energy (ΔU) will be equal in magnitude but positive, since no heat is being added or removed: ΔU = 500 joules Thus, the internal energy of the gas increases by 500 joules. This increase in internal energy can result in an increase in temperature of the gas since the energy is not being used to do work by the gas or being lost as heat to the surroundings.

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An a-particle is accelerated through a potential difference of 10 kV and moves along x-axis. It enters in a region of uniform magnetic field B = 2 × 10-3 T acting along y-axis. Find the radius of its path. (Take mass of a-particle = 6.4 x 10-27 kg

Posted by Nikita Kanoo 10 months, 1 week ago

CBSE > Class 12 > Physics

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Series RPH-DS1

Posted by Joyal Vattathil 10 months, 1 week ago

CBSE > Class 12 > Physics

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What is kirchhoff law

Posted by Nikhil Sharma 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Ritika Singh 10 months, 2 weeks ago

Algebraic Sum of entering Current + Leaving Current. Kirchhoff's Current Law...

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For Two Nichrome wires Connected In Series with A Battery How Does the ratio Of the Drift Velocity of electron In them Depend On their (i) length (ii) Diameter

Posted by Prashant Patel 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Define binding energy

Posted by Sayanhik Maity 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Is motional EMF in Electromagnetic induction is deleted in 2023_24 CBSE board ??

Posted by Qudsiya Fatima 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Nobody 🌼🌼🌼 10 months, 2 weeks ago

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Prince Mishra 10 months, 2 weeks ago

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Nazia Kazmi 10 months, 2 weeks ago

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Zafreen Batool 10 months, 2 weeks ago

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Jiya Negi 10 months, 2 weeks ago

Noo

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Electric field due to parallel plate capacitor.

Posted by Amit Pawaiya 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Neeraj Kumar 10 months, 2 weeks ago

Electric field .i.e. Enet of parallel plate capacitor is Sigma/E°

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Electric field at axis

Posted by Krish Gupta 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Rahul Pant 10 months, 2 weeks ago

E=2kqr/(r^2-l^2)^2

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What is magnetic field and electric field

Posted by Mahak Choudhary 10 months, 2 weeks ago

CBSE > Class 12 > Physics

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Zafreen Batool 10 months, 2 weeks ago

Simply : electric field :- the space around the electric effect cld E.field.& magnetic field:-the space around the magnetic effect cld M.field

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Rahul Pant 10 months, 2 weeks ago

Magnetic field= a region around a magnetic material or a moving electric charge within which the force of magnetism acts. Electric field=a region around a charged particle or object within which a force would be exerted on other charged particles or objects.

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Derivation of equation of compound microscope

Posted by Poojapriya Balamurugan 10 months, 3 weeks ago

CBSE > Class 12 > Physics