Question -
The current I through 10 Ω resistor in the circuit shown in figure.
Options:
A .  50 mA
B .  20 mA
C .  40 mA
D .  80 mA
E .  35 mA
Answer: Option D : D In the given circuit, junction diode D1 if forward biased, will conduct current and junction diode D2 is reverse biased, will not conduct current. Therefore, current I = 210+15 = 0.08 A = 80 mA.
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