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The diode connected in forward bias has zero resistance and if connected in reverse biase has infinity resistance Find the effective resistance across A and B the given circuit.


$(a)\;10\;\Omega \\ (b)\;zero \\ (c)\;infinity \\ (d)\;20\; \Omega $

1 Answer

According to Wheatstone principle there is no current through the diode.
Therefore the effective resistence is $10 \Omega$
Hence a is the correct answer.
answered Jan 27, 2014 by meena.p
edited Jul 14, 2014 by balaji.thirumalai

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