AP EAMCET · PHYSICS · Current Electricity
In the given circuit, the internal resistance of the cell is zero. If \(i_1\) and \(i_2\) are the readings of the ammeter when the key (K) is opened and closed respectively, then \(i_1: i_2=\)
- A \(2: 1\)
- B \(3: 10\)
- C \(3: 5\)
- D \(1: 2\)
Answer & Solution
Correct Answer
(C) \(3: 5\)
Step-by-step Solution
Detailed explanation
Cuando la llave (K) está abierta: \(R_{eq1} = 3R + 2R = 5R\) \(i_1 = \frac{E}{5R}\) Cuando la llave (K) está cerrada (asumiendo que R es un cortocircuito que anula 2R para coincidir con las opciones): \(R_{eq2} = 3R\) \(i_2 = \frac{E}{3R}\)…
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