Advertisements
Advertisements
प्रश्न
What is the ratio of inductive and capacitive reactance in an ac circuit?
पर्याय
ω2LC
LC2
`(LC)/omega^2`
`omega^2L`
उत्तर
ω2LC
Explanation:
Inductive reactance, XL = ωL
Capacitive reactance, `X_C = 1/(omegaC)`
Therefore, `X_L/X_C = (omegaL)/((1"/"omegaC))`
= `omega^2LC`
APPEARS IN
संबंधित प्रश्न
The magnetic field energy in an inductor changes from maximum to minimum value in 5.0 ms when connected to an AC source. The frequency of the source is
An inductor, a resistance and a capacitor are joined in series with an AC source. As the frequency of the source is slightly increased from a very low value, the reactance
An inductor coil of some resistance is connected to an AC source. Which of the following quantities have zero average value over a cycle?
(a) Current
(b) Induced emf in the inductor
(c) Joule heat
(d) Magnetic energy stored in the inductor
An inductor-coil, a capacitor and an AC source of rms voltage 24 V are connected in series. When the frequency of the source is varied, a maximum rms current of 6.0 A is observed. If this inductor coil is connected to a battery of emf 12 V and internal resistance 4.0 Ω, what will be the current?
Show that in an AC circuit containing a pure inductor, the voltage is ahead of current by π/2 in phase.
In a circuit containing resistance only, voltage and current are ______.
If the frequency of an A.C. is made 4 times of its initial value, the inductive reactance will ______.
An inductive circuit contains resistance of 10 ohms and an inductance of 2 henry. If an A.C. voltage of 120 Volts and frequency 60 Hz is applied to this circuit, the current would be nearly ______.
An inductor of inductance L, a capacitor of capacitance C and a resistor of resistance ‘R’ are connected in series to an ac source of potential difference ‘V’ volts as shown in the figure.
The potential difference across L, C, and R is 40 V, 10 V and 40 V, respectively. The amplitude of the current flowing through the LCR series circuit is `10sqrt2 "A"`. The impedance of the circuit is:
An ideal inductor is connected across an AC source of voltage. The current in the circuit ______.
