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How can we use a diode as a switch...

How can we use a diode as a switch

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When a p-n junction diode in reverse biase is connected across a battery it offers infinite resistance and acts as a switch in off position .However when it is connected in forward in biase it offers zero resistance and hence acts as a swicth in ON position.
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MODERN PUBLICATION-SEMICONDUCTOR ELECTRONICS METERIALS DEVICES AND SIMPLE CIRCUITS -CONCEPUAL QUESTIONS
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  9. Transistor also works bidirectinaly commment

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  12. In the given circuit diagram, a voltmeter 'V' is connected across a la...

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  14. Discuss how a NOT gate is realised using NAND gates.

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  15. Realise the formation of AND gate using NAND gate

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  16. Realise the formation of OR gate from NAND gate

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  18. NAND gate is also known as digital building block explain

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  19. Arrange two NAND gates and one OR gate such that the combination o...

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  20. The following Fig. shows the input waveforms (A,B) and the output wave...

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