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Calculate the value of the resistance R in the circuit shown in the figure so that the current in the circuit is 0.2 A. What would b the potential difference between points B and E?

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Question

Calculate the value of the resistance R in the circuit shown in the figure so that the current in the circuit is 0.2 A. What would b the potential difference between points B and E?

Numerical
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Solution

Apply Kirchhoff’s Law:

5(0.2) + R (0.2) + 15(0.2) = 8 − 3

⇒ R = 5Ω

VBE = 5(0.2) = 1V

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2011-2012 (March) All India Set 1

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