A circuit consists of a 171- resistor and a 0.158-H inductor. These two elements are connected in series across a generator that has a frequ

Question

A circuit consists of a 171- resistor and a 0.158-H inductor. These two elements are connected in series across a generator that has a frequency of 147 Hz and a voltage of 278 V. (a) What is the current in the circuit? (b) Determine the phase angle between the current and the voltage of the generator

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Thái Dương 2 months 2021-08-19T05:01:43+00:00 1 Answers 1 views 0

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    2021-08-19T05:03:18+00:00

    Answer:

    a ) I= 1.635-i0.0021 b) ∅=   -0.074

    Explanation:

    a) reactive impeadance= 2πfL

                                     =2(3.14)(147)(0.158)

                                     =145.86 Ω

    Z= 171+j145.86

    I=V/Z

    I=278/(171+j145.86)

    I= 1.635-i0.0021

    b) ∅=inv.tan (-0.0021/1.635)

     ∅=-0.074

     

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