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  4. Determine the virtual value of ac current shown in figure.

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Q. Determine the virtual value of ac current shown in figure.Physics Question Image

Alternating Current

Solution:

According to the rule
$I _{ r . m . s }=\sqrt{\frac{ I _{1}^{2}+ I _{2}^{2}+ I _{3}^{2}}{ N }}$
$=\sqrt{\frac{2^{2}+2^{2}+2^{2}}{3}}$
$I _{ rms }=2 A$