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A 2   V battery is connected across A B as shown in the figure. The value of the current supplied by the battery when in first case battery's positive terminal is connected to A and in second case when positive terminal of battery is connected to B will respectively be:

Options

  1. A0.2  A and 0.1  A
  2. B0.1  A and 0.2  A
  3. C0.2  A and 0.4  A
  4. D0.4  A and 0.2  A

Correct answer

D. 0.4  A and 0.2  A

Step-by-step solution

When + ve polarity is connected to A Then D 1 is forward biased and D 2 is reversed biased i.e. ∴ I 1 current through D 1 = 2 5 = 0.4   A When + ve polarity is connected to B then D 2 is forward biased and D 1 is reversed biased then ⇒ I 2 = 2 10 = 0.2  A

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