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What is concave lens ?...

What is concave lens ?

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BINA LIBRARY-ELECTRONIC DEVICES-EXERCISE
  1. In an n p n transistor circuit, the collector current is 15 mA. If 95%...

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  2. The ac current gain in a transistor in CE mode is 120. What is the cha...

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  3. What is concave lens ?

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  4. A change of 0.2 mA in the base current causes a 5 mA in the the collec...

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  5. A change of 0.2 mA in the base current causes a 5 mA in the the collec...

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  6. The input resistance of a silicon transistor is 100 Ω. Base current is...

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  7. The input resistance of a Silica transistor is 665Ω. Its base current ...

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  8. The input resistance of a Silica transistor is 665Ω. Its base current ...

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  9. When a semi - conductor is continuously heated its resistance

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  10. The potential barrier in the depletion layer is due to

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  11. What is a p-n junction diode?

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  12. The least doped region in a transistor is

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  13. In a germanium sample, traces of gallium are added as an impurity.The ...

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  14. On increasing current in a semi - conductor diode, the contact potenti...

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  15. In a full wave rectifier with input frequency 50 Hz, the ripple in th...

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  16. A p- type semi conductor is

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  17. Zener diode is used as

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  18. a n-p-n transistor conducts when

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  19. To obtain p- type germanium semi conductor, it must be doped with

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  20. When arsenic is added as an imparity to silicon the resulting material...

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