Physics · Reactance and impedance, LCR series circuit, resonance, power in AC circuits, wattless current
With increase in frequency of an A.C. supply, the inductive reactance
With increase in frequency of an A.C. supply, the inductive reactance
- A. decreases
- B. increases directly with frequency
- C. increases as square of frequency
- D. decreases inversely with frequency
Step-by-step solution
Inductive reactance is given by XL = 2πfL, where f is the frequency and L is the inductance. Since XL is directly proportional to f, it increases linearly with frequency.
Related MCQs
- The power loss in an circuit is when in the circuit there is only…
- A circuit consists of a resistor,an inductor and a capacitor connected in series. If the resistance of a resistor is and the value of induct…
- In series LCR circuit and impedance is . An r.m.s. voltage is applied across the circuit. The true power consumed in a.c. circuit is…
- The inductive reactance of a choke coil of in an circuit of will be…
- A resistance =12 \Omega ; \) inductance =2 \) henry and capacitive reactance are connected in series to an ac generator, then:…