Chapter Seven ALTERNATING CURRENT - NCERT
voltage and current phasors on vertical axis, i.e., vm sin ω t and im sin ω t, respectively represent the value of voltage and current at that instant. As they rotate with frequency ω, curves in Fig. 7.4(b) are generated. From Fig. 7.4(a) we see that phasors V and I for the case of a resistor are in the same direction. This is so for all times.
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