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Conservation of energy and momentum in Physics
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यदि तांबे के तार को ..
1.
यदि तांबे के तार को दो गुना बढ़ा दिया जाये, तो उसका प्रतिरोध हो जायेगा?
A.
एक-चौथाई
B.
चार गुना
C.
आधा
D.
दोगुना
Answer» C. आधा
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