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The value of ∮ di along a circle of radius 2 units is— ƒ
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- Zero
- 2 π
- 4 π
- 8 π
Correct Option: A
∮ dl is always zero whatever may be the closed path it is so because dl is an element of displacement displacement (not of simply length) and around a closed path is starting at one point and reaching back over there, net displacement is zero and hence ∮ dI = 0.
