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The circuit shown in the figure contains...

The circuit shown in the figure contains two diodes each with a forward resistance of 30 `Omega` and with infinite backward resistance. If the battery is 3 V, the current through the 50 `Omega` resistance (in ampere) is

A

zero

B

0.01

C

0.02

D

0.03

Text Solution

Verified by Experts

The correct Answer is:
C
In the circuit the upper diode `D_1` is reverse biased and the lower diode `D_2` is forward biased. Thus there will be no current across upper diode junction. The effective circuit will be as shown in figure.
Total resistance of circuit, R = 50 + 70 + 30 = 150 `Omega`
Current in circuit, `I=V/R=(3V)/(150 Omega)=0.02 A`
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