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The slope of the V-I curve is 86.5°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.

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The slope of the V-I curve is 86.5°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.

(a) 16.34 Ω

(b) 15.88 Ω

(c) 48.43 Ω

(d) 54.57 Ω

I have been asked this question in my homework.

This key question is from Induction Motors topic in division Speed Control of Direct Current Motors & Induction Motors of Electric Drives

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Correct answer is (a) 16.34 Ω

Best explanation: The slope of the V-I curve is resistance. The slope given is 16.34° so R=tan(16.34°)=16.34 Ω. The slope of the I-V curve is reciprocal of resistance.

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