Assume the buckle is triangular, how high is buckle

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Q1. The electricity received at an electric substation has a potential difference of 2.80 10^5V. If the requires output is 440V, what must be the ratio of the turns of the step-down transformation?

Q2. A 1 km steel railroad rail is fastened securely at both ends when the temperature is 20C. With increasing temperature the rail begins to buckle. Assume the buckle is triangular, how high is buckle?

Reference no: EM1320131

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