| 1. | In a P-type semiconductor, minority carriers are ? | |
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holes
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electrons
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dopants
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atoms
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Report Question| 2. | The electrodes of a semi-conductor diode are known as ? | |
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gate and source
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anode and cathode
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collector and base
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cathode and drain
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| 3. | Mobility of electrons is highest in ? | |
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Si
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GeAs
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Ge
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C
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| 4. | Which of the following ohmic resistance ? | |
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Copper wire
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Carbon resistance
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Diode
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Tungsten wire
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| 5. | To obtain the P-type semiconductor ? | |
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A pentavalent Impurity is added
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A trivalent Impurity is added
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Both are added
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None of these
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| 6. | The bond formed by sharing of electrons by two or more atoms is called ? | |
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lonic Bond
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Metallic Bond
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Covalent Bond
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Coordinate Bond
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| 7. | Valency of silicon is ? | |
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4
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3
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5
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2
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| 8. | At room temperature semiconductor material is a ? | |
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perfect insulator
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superconducting
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conducting
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slightly conducting
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| 9. | A semiconductor device made out of a material having very high temperature coefficient of resistance is ? | |
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Transistor
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Varistor
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Thyristor
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Thermistor
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| 10. | Generally, mobility of electrons in semi conductors is ............ times the mobility of holes ? | |
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two
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three
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four
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five
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