iran-konkur 2015 Q185

iran-konkur · Other · konkur-riazi_1394 Not Maths
185- The figure shows long, straight, parallel wires perpendicular to the page, with the direction and magnitude of the currents indicated. What is the direction of the magnetic force entering the center of the square?
[Figure: Square arrangement of four wires at corners; $I_1 = 2I$ (top-left, out of page), $I_2 = I$ (top-right, out of page), $I_3 = 2I$ (bottom-left, into page), $I_4 = I$ (bottom-right, into page).]
(1) $\leftarrow$ (2) $\rightarrow$ (3) $\downarrow$ (4) $\uparrow$
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\textbf{185-} The figure shows long, straight, parallel wires perpendicular to the page, with the direction and magnitude of the currents indicated. What is the direction of the magnetic force entering the center of the square?

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\textit{[Figure: Square arrangement of four wires at corners; $I_1 = 2I$ (top-left, out of page), $I_2 = I$ (top-right, out of page), $I_3 = 2I$ (bottom-left, into page), $I_4 = I$ (bottom-right, into page).]}

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(1) $\leftarrow$ \hfill (2) $\rightarrow$ \hfill (3) $\downarrow$ \hfill (4) $\uparrow$



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\textbf{Physics} \hfill \textbf{120-C} \hfill \textbf{Page 16}

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