Physics-
General
Easy
Question
The circuit shown in the figure contains two diodes each with a forward resistance of 
and with infinite backward resistance. If the battery is 3V, the current through the 
resistance (in ampere) is
- Zero
- 0.01
- 0.02
- 0.03
The correct answer is: 0.02
In the circuit the upper diode 
is reverse biased and the lower diode 
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
Current in circuit, 
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