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A coil resistance 200 ohms and self inductance 1.0 henry has been connected to an a.c. source of frequency \mathrm{\frac{200}{\pi }Hz}.The phase difference between voltage and current is ;

Option: 1

30^{\circ}


Option: 2

63 \degree


Option: 3

45\degree


Option: 4

75\degree


Answers (1)

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\mathrm{\begin{aligned} & \tan \phi= \frac{X_{\mathrm{L}}}{\mathrm{R}}=\frac{2 \pi \mathrm{L}}{\mathrm{R}}=\frac{2 \pi(200 / \pi) \mathrm{I}}{200}=2 \\ & \therefore \quad \phi=63^{\circ} . \end{aligned}}

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rishi.raj

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