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X and Y are wires carrying electric currents which are perpendicular to the page and A, B and C are the three compasses as shown in figure. Which of the following statements is correct regarding magnitude and direction of current ?(A) Direction of current is same and its magnitude is larger in X than in Y.(B) Direction of current is opposite and magnitude is smaller in X than in Y.(C) Direction of current is opposite and Its magnitude is larger in X than in Y(D) Direction of current and its magnitude is same in both X and Y. |
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Answer» Correct option (A) Direction of current is same and its magnitude is larger in X than in Y. Explanation: The needles of the plotting compasses show that both conduct current into the page with different magnitudes. At A and B, direction of magnetic field is same, hence current in X is larger than in Y. |
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