TS EAMCET · Physics · Current Electricity
In the circuit shown below, the ammeter reading is zero. Then the value of the resistance \(R\) is 
- A \(50 \Omega\)
- B \(100 \Omega\)
- C \(200 \Omega\)
- D \(400 \Omega\)
Answer & Solution
Correct Answer
(B) \(100 \Omega\)
Step-by-step Solution
Detailed explanation
Given, circuit In loop (1) \(12-500 i_1-R i_1=0\) \(12=i_1(500+R)\)...(i) In loop (2) \(12-500 i_1-2=0 \Rightarrow 10=500 i_1\) or \(i_1=\frac{1}{50} A\).....(ii) From Eqs. (i) and (ii)…
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