Multiple Choice QuestionsAssume that each diode as shown in the figure has a forward bias resistance of 50 Ω and an infinite reverse bias resistance. The current through the resistance 150 Ω is
0.66 A
0.05 A
Zero
0.04 A
D.
0.04 A
The circuit is
As the lower diode attached to 100 Ω resistance is in reversed biased so, it is non- conducting.
Now, the circuit can be redrawn as,
∴ Current through the circuit,
Two cells A and B of emf 2V and 1.5 V respectively, are connected as shown in figure through an external resistance 10 Ω. The internal resistance of each cell is 5 Ω. The potential difference EA and EB across the terminals of the cells A and B respectively are
EA = 2.0 V, EB = 1.5 V
EA = 2.125 V, EB = 1.375 V
EA = 1.875 V, EB = 1.625 V
EA = 1.875 V, EB = 1.375 V
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