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प्रश्न
A parallel LC resonant circuit is used as ______
पर्याय
a tunning circuit in a television receiver set.
a transformer
a rectifier
a filter circuit
उत्तर
A parallel LC resonant circuit is used as a filter circuit.
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संबंधित प्रश्न
In a series LCR circuit at resonance, the applied emf and current are - ______
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?
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 ______
In series resonance, LCR circuit, below the resonant frequency, the circuit is ____________.
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If the potential difference across the inductor (9 mH) is same as that across the condenser (10 µF) in a series R-L-C circuit, then the frequency of the applied e.m.f. is nearly ____________.
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At what frequency (approximate) will the inductive reactance of 4 H inductance be equal to the capacitive reactance of 4 µF capacitance?
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 series resonant circuit, at resonance, ____________.
A coil of 16 mH and a capacitor of 10 µF are in series with an A.C source along with 5 `Omega` resistances. If inductive reactance is equal to capacitive reactance, then the angular frequency (in rad/s) of source is ____________.
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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'?
The LCR series and parallel resonant circuits are respectively called as ____________.
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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.
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