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What are the reading of ammeters A(1) an...

What are the reading of ammeters `A_(1)` and `A_(2)` shown in Fig.? Neglect the resistances of the ammeters, when the p-n junction used is ideal one.

Text Solution

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Here the p-n junction is reversed biased with battery of emf 2V. Hence resistance of p-n junction becomes infinite. No current flows through ammeter `A_(1)`. So the reading of ammeter `A_(1)` is zero.
The current through ammeter
`A_(2)=2/5=0.4A`
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