Common Errors and its Rectifications:
Common Errors:
1. Students sometimes may confuse the peak current and instantaneous value of current and emf.
2. They may confuse in the area of R, L and C with AC. The relation between current and induced emf.
Rectifications:
1. Instantaneous current, i = I0 sin tot Peak current, I0 = √2 Irms Instantaneous emf, e = E0 sin cor Peak emf, E0 = √2 Erms
2. In Inductor: current is \(\frac{π}{2}\) rad less than that of emf.
In Resistor: current and emf are same phase.
In Capacitor: current is \(\frac{π}{2}\) rad greater than that of emf.