GATE Papers >> ECE >> 2016 >> Question No 115

Question No. 115 ECE | GATE 2016
Consider the time-varying vector $\mathbf I=\widehat{\mathrm x}\;15\;\cos\left(\mathrm{ωt}\right)+\widehat{\mathrm y}\;5\;\sin\left(\mathrm{ωt}\right)$ in Cartesian coordinates, where ω>0 is a constant. When the vector magnitude is at its minimum value, the angle θ that I makes with the x axis (in degrees, such that 0θ180) is ________

Answer : 90 : 90

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