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1. নিম্নর কোন ক্ষেত্রে রোধের মান অপরিবর্তিত থাকবে?
- A. Both length and cross sectional area are double
- B. Both length and cross sectional area are double
- C. Both length and cross sectional area are double
- D. Both length and cross sectional area are double
Answer: Option A
Explanation:
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