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PUNJAB BOARD PREVIOUS YEAR PAPERS-Solids-Exercise
- Draw the energy-band diagram for an insulator.
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- What is Fermi energy level ?
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- What is doping ?
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- What do you mean by the term doping in semiconductors ?
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- What type of impurity is added to obtain N-Type and P-Type semi conduc...
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- What is the effect of rise in temperature on the conductivity of coppe...
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- What is an Extrinsic Semi-conductor ?
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- What is n-type semiconductor ?
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- What do you mean by p-type semi conductor ?
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- Choose the correct option: Electrical conductivity of a semi conductor...
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- Choose the correct option : A pure semiconductor behaves slightly as a...
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- For metal conductors, the electrical resistivity decreases with the ri...
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- p-type semiconductor is obtained by doping silicon with Indium(In).(Ye...
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- What are extrinsic semiconductor ? Explain acceptor-type semi-conducto...
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- Explain various energy bands in an atom.
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- What is doping ? Write three necessary conditions for it and two metho...
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- Distinguish between conductor and semiconductor on the basis of their ...
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- hat are extrinsic semi-conductors ? Explain donor type semi-conductor.
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- What are ‘holes’? Write their characteristics.
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- Distinguish between energy levels and energy bands.
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