In the calculation of the power in an a c circuit using the formula W EI cos , errors of 1 in I, 0 7 in E and 2 in occur Find the percentage error in the calculated value of W when 1 3 rad ...

The approximate error in Wis given by aw ...

In the calculation of the power in an a.c. circuit using the formula W = EI cos

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In the calculation of the power in an a.c. circuit using the formula W = EI cos Φ, errors of +1% in I, –0.7% in E and + 2% in Φ occur. Find the percentage error in the calculated value of W when Φ = 1/3π rad.

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Modern Engineering Mathematics

ISBN: 9781292253497

6th Edition

Authors: Glyn James

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Question Posted: Jan 16, 2024 03:01 AM

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In the calculation of the power in an a.c. circuit using the formula W = EI cos

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Modern Engineering Mathematics

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