A resistor and an inductor are connected in a series circuit with an ac source. If the frequency of the source is increased, the current in the circuit willa)increase b)decrease c)not change
Inductive impedance is proportional to frequency by the equation X omega L. where omega is 2 pi time frequency. So higher frequency means higher impedance and therefore lower current.
Reactance of inductor (X) is given via X 2?fL X 2 * ? * 106 * 0.2 X 133.2 ? Impedance (Z) of circuit: Z ?(R? + X?) R 215?; X 133.2 ? Z 252.ninety two ? Ohm's regulation i v/r I 234 / 252.ninety two I 0.925 A Voltage in the time of R is in area with the availability voltage, so area attitude arctan(X/R) arctan (133.2 / 215) 31.seventy 8°
