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Answer:
Explanation:I think it is 3 because the constant K when u substitute u get it.
Hi friend here is your answer.
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Answer is C)
E=[2k×lmada×sin(x/2)]/a where
[k=1/4×pi×epsilon naught]
x=180
After solving
E=[(lamda)/(2×pi×epsilon naught×a)]
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