The wires are moved apart to a separation, 2d, and the current in each wire is increased to 2I. The net force per unit length on each wire is:

What is the magnitude of the resultant vector round your answer to the nearest tenth

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An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to