In the figure, potential difference between A and B is A. zeroB. 5 VC.

1.	In the figure, potential difference between A and B is A. zeroB. 5 VC. 10 VD. 15 V
Answer» Correct Answer - C Here p-n junction is forward biased. If p-n junction is ideal, its resistance is zero. The effective resistance across A and B `=(10xx10)/(10+10) = 5KOmega` Current in the circuit, `I=(V)/(R )=(30)/(15xx10^(3))=(2)/(10^(3))A` Current in arm `AB=I=(2)/(10^(3))` Potential difference across A and B `=(2)/(10^(3))xx5xx10^(3)=10V`

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In the figure, potential difference between A and B is A. zeroB. 5 VC. 10 VD. 15 V

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