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Concepts Of Physics MCQ Edition [Volume 2]PhysicsSemiconductors and Semiconductor Devices

Determine the current through the resistance R in the figure if R = 12 .

Options

  1. A0.50 A
  2. B0.83 A
  3. C0.49 A
  4. D0.42 A

Correct answer

D. 0.42 A

Step-by-step solution

Let the right common junction of the circuit be the reference node with a potential of 0 V , and let the left common junction have a potential V . From the given circuit diagram, we can identify the polarities of the batteries: - In the top branch, the longer line of the battery symbol is on the left, indicating the positive terminal is connected to the left node. Thus, the potential after the battery (moving right) is V - 4 . - In the middle branch, the shorter, thicker line is on the left, indicating the negative

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