Two sinusoidal currents are given by the equations i_ 1= 50\sin (\omegat +\pi /4 ) and i_ 2 =25 \sin (\omegat –\pi/ 6 ). The phase difference between them is _______ degrees.

SSC JE Electrical Engineering 2014 Set 1 Paper

Question : 138 of 200

Marks: +1, -0

Two sinusoidal currents are given by the equations

i_ 1

= 50

sin (ωt +π /4 )

and

i_ 2 =

sin (ωt –π/ 6 )

. The phase difference between them is _______ degrees.

Solution:

Phase difference '

ϕ'=ϕ_1-ϕ_2

=π/4-(-π/6)=75°

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