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प्रश्न
A series LCR resonant circuit is used as ______
विकल्प
A potential divider circuit.
A radio wave transmitter
A source of displacement current
A tunning circuit in a television receiver set.
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उत्तर
A series LCR resonant circuit is used as a tunning circuit in a television receiver set.
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संबंधित प्रश्न
In a series LCR circuit at resonance, the applied emf and current are - ______
State any one characteristic of a parallel LC AC resonance circuit.
A coil of resistance 10 Ω and inductance 100mH and a capacitor of variable capacitance are connected across a 20V, 50Hz A.C. supply. At what capacitance will resonance occur?
Obtain the expression for the resonant frequency of the LCR series circuit and explain electrical resonance in an LCR series circuit.
A parallel plate air condenser of capacity 10 µF is charged to a potential of 1000 V. The energy of the condenser is ______
In an LCR circuit, at resonance ______
Out of the following graphs, which graph shows the correct relation (graphical representation) for LC parallel resonant circuit?
In series resonance, LCR circuit, below the resonant frequency, the circuit is ____________.
An A.C. voltage of r.m.s. value 0.1 V is applied to an LCR series circuit in which L = 100 µH and C = 9 x 10-8 F and R = 2 `Omega`. The resonant frequency will be ____________.
In the given electrical circuit, which one of the following equations is a correct equation?
A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillation of frequency f. If L is doubled and C is changed to 4C, the frequency will be ____________.
In parallel resonance, the current will be minimum, when ____________.
In LCR circuit, the capacitance is changed from C to 4C. For some resonant frequency, the inductance should be changed from L to ____________.
At what frequency (approximate) will the inductive reactance of 4 H inductance be equal to the capacitive reactance of 4 µF capacitance?
In rejector circuit, above resonant frequency the circuit is ____________.
The LCR series and parallel resonant circuits are respectively called as ____________.
In a series resonant circuit, having L, C and R as its elements, the resonant current is i. The power dissipated in circuit at resonance is ______.
In LC parallel resonance circuit, choose the correct statement.
What is an acceptor circuit?
A coil of resistance 5 Ω and self inductance 0.2 H is connected in series with variable capacitor across a 30 V(rms), 50 Hz supply. (i) At what capacitance resonance occur? (ii) Find the corresponding current.
Find the reactance of a coil of inductance 100 mH at a frequency of 50 Hz.
What is a rejector circuit?
A particle starting from extreme position performs S.H.M. The phase difference of the particle between any two successive mean positions is ______.
In an L-C-R series resonant circuit, the angular frequency at resonance is ‘ω’. When the inductance of inductance is made twice and capacitance of the capacitor is made four times, the angular frequency at resonance is ‘ω₁’. The ratio of ω: ω₁ is
