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Thermoelectric Effect: Short Questions and Answers Physics

1. What do you mean by Seebeck Effect and why is it considered reversible? Seebeck effect is the phenomenon in which heating a junction formed b a loop of two different metals gives rise to electromotive force and thus electric current through the whole loop. When the hot and cold junctions are interchanged, the direction …

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electricity and magnetism

Electricity and Magnetism: Short Questions and Answers Physics Part 2

1. When a motor car is started, its light becomes slightly dim. Why? [HSEB 2065] When a motor car is started, current flows through the circuit which will be very high. Then there will be a large potential drop across the internal resistance of the cell and reduces the terminal p.d. of the battery. Due to …

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electricity and magnetism short questions

Electricity and Magnetism: Physics Class 12 Short Questions and Answers

In this post, we have discussed Electricity and Magnetism Short Questions and Answers of Physics Class 12 where you will get a detailed explanation. 1. What are the differences between a superconductor and a perfect conductor? The differences between a superconductor and a perfect conductor are given:(a) A superconductor is a substance that losses resistance …

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Electricity and Magnetism: Short Questions Answer of Electricity and Magnetism Physics Class 12

Electricity and Magnetism: Short Questions Answer of Electricity and Magnetism Physics Class 12

In this post, we have discussed Electricity and Magnetism Short Questions Answer of Electricity and Magnetism Physics Class 12 NEB 1. What do you mean by electric current? The rate of flow of electric charge through any cross-section of the given specimen is called the Electric Current. Let q be the total charge that flows …

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physics short questions answers from wave and optics

Short Questions and Answers of Physics Wave & Optics Class 12

1. What is Huygen’s Wave Theory of Light? Huygen’s Wave Theory of Light states that light energy is transmitted in the form of waves. Initially, it was assumed that Wave travels through an invisible medium called Ether, but the idea was later discarded. Huygen just gave a theoretical treatment but the experimental verification was done …

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