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OSWAAL PUBLICATION-Sample Paper 4-Exercise
- What is the electric field inside a conductor ?
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- How does the resistivity of a conductor vary with temperature?
03:38
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- State and explain Gauss's law in magnetism.
02:31
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- Mention any three application of eddy currents.
02:33
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- Which type of lens is used to correct myopia(short sightedness) ?
02:36
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- What is the rest mass of photon?
01:43
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- Write three postulates of Bohr. Mention two limitation of Bohr model.
04:35
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- Define mean life of a radioactive element.
02:06
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- write the symbol of NAND gate .
01:39
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- What is attenuation in communication system ?
01:12
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- Write Coulomb's law in vector form and explain the terms.
02:56
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- Mention two limitations of Ohm's law.
03:56
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- Write any two differences between diamagnetic and paramaganetic substa...
03:20
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- Current in a coil falls from 5 A to 0 A in 0.1 s, calculate the induce...
01:42
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- Give two uses of UV rays.
01:19
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- Draw the ray diagram for the formation of image in case of a concave m...
01:25
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- Distinguish between extrinsic and intrinsic semiconductors.
03:35
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- Write the block diagram of a transmitter.
02:20
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- Derive the relation between electric field and electric potential.
02:00
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- Arrive at the expression for velocity selector using Lorentz force.
05:43
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