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Q.

Both the diodes used in the circuit shown are assumed to be ideal and have negligible resistance when these are forward biased. Built in potential in each diode is 0.7 V. For the input voltages shown in the figure, the voltage (in Volts) at point A is ___-

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answer is 0012.00.

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Detailed Solution

Let say potential of point B = VB=0 ∴Vin=VC-VB=12.7 (given)⇒VC-0=12.7 ⇒VC=12.7VNow, built in potential of diode =VC-VA=0.7  [given]⇒12.7-VA=0.7 ⇒VA=12 V
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Both the diodes used in the circuit shown are assumed to be ideal and have negligible resistance when these are forward biased. Built in potential in each diode is 0.7 V. For the input voltages shown in the figure, the voltage (in Volts) at point A is ___-