Advertisements
Advertisements
प्रश्न
Define electric resonance.
उत्तर
When frequency of applied alternating source (ωr) is equal to natural frequency
`(1/sqrt"LC")`
of RLC circuit, the current in the circuit reaches its maximum value. Then the circuit is said to be in electrical resonance.
APPEARS IN
संबंधित प्रश्न
An inductor 20 mH, a capacitor 50 μF and a resistor 40Ω are connected in series across a source of emf V = 10 sin 340 t. The power loss in AC circuit is
Obtain an expression for average power of AC over a cycle. Discuss its special cases.
Calculate the instantaneous value at 60°, average value and RMS value of an alternating current whose peak value is 20 A.
The rms value of potential difference V shown in the figure is ______.
In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of supply. Which of the following elements are likely to constitute the circuit?
Which of the following is independent of the frequency of a.c?
An inductor of 0.5 mH, a capacitor of 200 µF, and a resistor of 2Ω are connected in series with a 220V ac source. If the current is in phase with the emf, the frequency of ac source will be ______ × 102 Hz.
In young's double slit experiment `"d"/"D"`= 10-4 D (d = distance between slits, D = distance of screen from the slits). At a point P on the screen resulting intensity is equal to the intensity due to individual slit l0. Then the distance of point P from the central maximum is (λ = 6000 `"A"^°`)
A series CR circuit with R = 200 Ω and C = (50/π) µF is connected across an ac source of peak voltage ε0 = 100 V and frequency v = 50 Hz. Calculate (a) impedance of the circuit (Z), (b) phase angle (Φ), and (c) voltage across the resistor.
