TS EAMCET · Physics · Current Electricity
A wire of resistance \(2 R\) is stretched such that its length is doubled. Then the increases in its resistance is
- A \(6 \mathrm{R}\)
- B \(4 \mathrm{R}\)
- C \(3 \mathrm{R}\)
- D \(2 \mathrm{R}\)
Answer & Solution
Correct Answer
(A) \(6 \mathrm{R}\)
Step-by-step Solution
Detailed explanation
Resistance of wire, \(R_1=2 R\) Length of wire, \(L_2=2 L_1\)…
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