COMEDK · Physics · 19. Current Electricity
Find the current through the 40 \(\Omega\) resistor in the given circuit having a diode, three resistors and two cells.
- A \(0.5\) A
- B \(1.2\) A
- C \(2.1\)A
- D \(0.21\)A
Answer & Solution
Correct Answer
(D) \(0.21\)A
Step-by-step Solution
Detailed explanation
Let the potential of the common right wire be \(0\) V. Observe the battery symbols to determine their polarities. For the \(10\) V battery, the longer line is on the right, so its positive terminal is on the right. For the \(5\) V battery, the longer line is on the left, so its…
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