Physics-
General
Easy
Question
Three points charges are placed at the corners of an equilateral triangle of side L as shown in the figure.
- The potential at the centroid of the triangle is not zero.
- The electric field at the centroid of the triangle is zero.
- The dipole moment of the system is
- The dipole moment of the system is
.
.
The correct answer is: The dipole moment of the system is .
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and 
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in 
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Phase different between and is
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A constant voltage at different frequencies is applied across a capacitance 
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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 
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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.
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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.
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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.
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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.
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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 
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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
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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
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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
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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
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