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Inductance and capacitance of a line is 0.8 ^μH⁄m and 32 ^pF⁄m. Find Z0?

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Inductance and capacitance of a line is 0.8 ^μH⁄m and 32 ^pF⁄m. Find  Z0?

(a) 158

(b) 166

(c) 143

(d) 127

I got this question in class test.

My query is from Problems of AM in chapter Amplitude Modulation of Analog Communications

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The correct choice is (a) 158

To explain: The characteristic impedance or surge impedance (Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current of a single wave propagating along the line; which is, a wave travelling in one direction in the absence of reflections in the other direction.

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