Mathematics, 14.07.2021 14:00, russelllang606

The length of a constantan wire P is twice of the constantan wire Q and the ratio of the diameter of wire P to wire Q is 1:3. Given that the resistance of the wire varies directly as the length and inversely as the square of the
diameter, find the resistance ratio of wire P to wire Q.

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The length of a constantan wire P is twice of the constantan wire Q and the ratio of the diameter of...