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प्रश्न
A series LCR resonant circuit is used as ______
पर्याय
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
A parallel LC resonant circuit is used as ______
In the LCR series circuit, what is the condition for current resonance?
State any one characteristic of a parallel LC AC resonance circuit.
State any two characteristics of a series LCR AC resonance circuit.
In the LCR series circuit, what are the (a) impedance and (b) reactance at current resonance?
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 ______
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 a resonance tube, first and second resonance positions occur respectively at 28 cm and 88 cm. If the frequency of the fork is 300 Hz, then the speed of sound is ____________.
A parallel combination of pure inductor and capacitor is connected across a source of alternating e.m.f. 'e'. The currents flowing through an inductor and capacitor are iL and iC respectively. In this parallel resonant circuit, the condition for currents i, iL and iC is (i = net r.m.s. current in the circuit)
Out of the following graphs which graph shows the correct relation for LC parallel resonant circuit?
In rejector circuit, above resonant frequency the circuit is ____________.
In series resonant circuit, at resonance, ____________.
An a.c. source of variable frequency 'f' is connected to an LCR series circuit. Which one of the graphs represent the variation of current 'I' in the circuit with frequency 'f'?
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 ______.
What is an acceptor circuit?
Find the reactance of a coil of inductance 100 mH at a frequency of 50 Hz.
In LCR series circuit, the condition for current resonance is ______.
What is a rejector circuit?
