Physics-
General
Easy
Question
A constant voltage at different frequencies is applied across a capacitance 
as shown in the figure. Which of the following graphs
Correctly depicts the variation of current with frequency ?
The correct answer is:
Related Questions to study
physics-
A box P and a coil Q are connected in series with an ac source of variable frequency. The rms value of emf of source is constant at 10 V. Box P contains a capacitance of 
in series with a resistance of 
. Coil Q has a self-inductance 
and a resistance of 
in series. The frequency is adjusted so that the maximum current flows in P and Q.
voltage across 
is.
A box P and a coil Q are connected in series with an ac source of variable frequency. The rms value of emf of source is constant at 10 V. Box P contains a capacitance of in series with a resistance of . Coil Q has a self-inductance and a resistance of in series. The frequency is adjusted so that the maximum current flows in P and Q.
voltage across is.
physics-General
physics-
A box P and a coil Q are connected in series with an ac source of variable frequency. The rms value of emf of source is constant at 10 V. Box P contains a capacitance of in series with a resistance of . Coil Q has a self-inductance and a resistance of in series. The frequency is adjusted so that the maximum current flows in P and Q.
Maximum current through circuit is.
A box P and a coil Q are connected in series with an ac source of variable frequency. The rms value of emf of source is constant at 10 V. Box P contains a capacitance of in series with a resistance of . Coil Q has a self-inductance and a resistance of in series. The frequency is adjusted so that the maximum current flows in P and Q.
Maximum current through circuit is.
physics-General
physics-
A box P and a coil Q are connected in series with an ac source of variable frequency. The rms value of emf of source is constant at 10 V. Box P contains a capacitance of in series with a resistance of . Coil Q has a self-inductance and a resistance of in series. The frequency is adjusted so that the maximum current flows in P and Q.
Impedance of p at this frequency is.
A box P and a coil Q are connected in series with an ac source of variable frequency. The rms value of emf of source is constant at 10 V. Box P contains a capacitance of in series with a resistance of . Coil Q has a self-inductance and a resistance of in series. The frequency is adjusted so that the maximum current flows in P and Q.
Impedance of p at this frequency is.
physics-General
physics-
We know that the amplitude of oscillating system becomes maximum, when the applied frequency is equal to the intrinsic frequency of system. And this concept can be applied even in electrical a.c circuits containing 
and 
It is being such that when the frequency of broad casting station becomes equal to frequency of radio circuit, then the impedance (equivalent resistance) of circuit becomes minimum and maximum current flows in the circuit with the result the radio station is tuned its impedance is given by
and 
Now in the given circuit as shown, at a certain moment of the values of voltages and current are given When power loss through resistor is 50 watt, then angular frequency of applied a.c voltage is
We know that the amplitude of oscillating system becomes maximum, when the applied frequency is equal to the intrinsic frequency of system. And this concept can be applied even in electrical a.c circuits containing and It is being such that when the frequency of broad casting station becomes equal to frequency of radio circuit, then the impedance (equivalent resistance) of circuit becomes minimum and maximum current flows in the circuit with the result the radio station is tuned its impedance is given by
and
Now in the given circuit as shown, at a certain moment of the values of voltages and current are given When power loss through resistor is 50 watt, then angular frequency of applied a.c voltage is
physics-General
physics-
We know that the amplitude of oscillating system becomes maximum, when the applied frequency is equal to the intrinsic frequency of system. And this concept can be applied even in electrical a.c circuits containing and It is being such that when the frequency of broad casting station becomes equal to frequency of radio circuit, then the impedance (equivalent resistance) of circuit becomes minimum and maximum current flows in the circuit with the result the radio station is tuned its impedance is given by
and
Now in the given circuit as shown, at a certain moment of the values of voltages and current are given The current in the circuit is
We know that the amplitude of oscillating system becomes maximum, when the applied frequency is equal to the intrinsic frequency of system. And this concept can be applied even in electrical a.c circuits containing and It is being such that when the frequency of broad casting station becomes equal to frequency of radio circuit, then the impedance (equivalent resistance) of circuit becomes minimum and maximum current flows in the circuit with the result the radio station is tuned its impedance is given by
and
Now in the given circuit as shown, at a certain moment of the values of voltages and current are given The current in the circuit is
physics-General
physics-
We know that the amplitude of oscillating system becomes maximum, when the applied frequency is equal to the intrinsic frequency of system. And this concept can be applied even in electrical a.c circuits containing L,C and R. It is being such that when the frequency of broad casting station becomes equal to frequency of radio circuit, then the impedance (equivalent resistance) of circuit becomes minimum and maximum current flows in the circuit with the result the radio station is tuned its impedance is given by
and
Now in the given circuit as shown, at a certain moment of the values of voltages and current are given The value of applied peak voltage is
We know that the amplitude of oscillating system becomes maximum, when the applied frequency is equal to the intrinsic frequency of system. And this concept can be applied even in electrical a.c circuits containing L,C and R. It is being such that when the frequency of broad casting station becomes equal to frequency of radio circuit, then the impedance (equivalent resistance) of circuit becomes minimum and maximum current flows in the circuit with the result the radio station is tuned its impedance is given by
and
Now in the given circuit as shown, at a certain moment of the values of voltages and current are given The value of applied peak voltage is
physics-General
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The potential different across a 2H inductor as a function of time is shown in figure. At time t=0, current is zero Current versus time graph across the inductor will be
The potential different across a 2H inductor as a function of time is shown in figure. At time t=0, current is zero Current versus time graph across the inductor will be
physics-General
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The potential different across a 2H inductor as a function of time is shown in figure. At time t=0, current is zero Current at t=2s is
The potential different across a 2H inductor as a function of time is shown in figure. At time t=0, current is zero Current at t=2s is
physics-General
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For the circuit shown in figure, the current through the inductor is 1.6 amp. While the current through the condenser is 0.4 amp. Then
For the circuit shown in figure, the current through the inductor is 1.6 amp. While the current through the condenser is 0.4 amp. Then
physics-General
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In a parallel LCR circuit shown in figure, at resonance,
In a parallel LCR circuit shown in figure, at resonance,
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Which of the following plots may represent the reactance of a series LC combination
Which of the following plots may represent the reactance of a series LC combination
physics-General
physics-
The figure shows variation of 
and 
with frequency f in a series L,C,R circuit. Then for what frequency point, the circuit is inductive
The figure shows variation of and with frequency f in a series L,C,R circuit. Then for what frequency point, the circuit is inductive
physics-General
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The graphs given below depict the dependence of two reactive impedances 
and 
on the frequency of the alternating e.m.f. applied individually to them. We can then say that
The graphs given below depict the dependence of two reactive impedances and on the frequency of the alternating e.m.f. applied individually to them. We can then say that
physics-General
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When an ac source of e.m.f. 
is connected across a circuit, the phase difference between the e.m.f. e and the current 
in the circuit is observed to be 
, as shown in the diagram. If the circuit consists possibly only of RC or LC in series, find the relationship between the two elements
When an ac source of e.m.f. is connected across a circuit, the phase difference between the e.m.f. e and the current in the circuit is observed to be , as shown in the diagram. If the circuit consists possibly only of RC or LC in series, find the relationship between the two elements
physics-General
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Find the rms and average value of the wave-form shown in figure.
Find the rms and average value of the wave-form shown in figure.
physics-General
