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OSWAAL PUBLICATION-Sample Paper 7-Exercise
- The emf of a cell is always greater than its terminal voltage. Why? Gi...
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- What is attenuation in communication system ?
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- Define S.I unit of charge .
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- Define dispersive power of the material of a prism. How can it be meas...
02:57
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- Name the scientist who determined the speed of light most accurately.
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- Mention one application of Raman effect.
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- What are the directions of electric and magnetic field vectors relativ...
03:13
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- Give one example each of a .system. that uses that Space wave mode of ...
02:56
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- name the spectral series of hydrogen which lies in the ultraviolet reg...
02:30
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- Mention any three application of eddy currents.
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- What is the effect of the presence of a dielectric medium on Capacitan...
03:40
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- How does the electrostatic force between two point charges change, whe...
02:28
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- Distinguish between 'Analog and Digital signals'.
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- Draw the ray diagram of image formation in case of compound microscope
02:40
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- Obtain an expression for the force between two straight parallel condu...
10:04
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- How are p-type n-type semiconductors formed ?
03:24
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- What is (a) electric dipole moment , (b) dielectric strength ?
04:17
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- What is (a) electric dipole moment , (b) dielectric strength ?
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- The current in a coil is changing from 10 A and 8 A in 0.01 second. Th...
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- Derive the expression for emf induced in a straight conductor moving p...
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