Power in AC Circuits
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PHXII07:ALTERNATING CURRENT

356183 An alternating current generator has an internal resistance \(R_{g}\) and an internal reactance \(X_{g}\). It is used to supply power to a passive load consisting of a resistance \(R_{g}\) and a reactance \(X_{L}\). For maximum power to be delivered from the generator to the load, the value of \(X_{L}\) is equal to

1 \(X_{g}\)
2 \(R_{g}\)
3 \(-X_{g}\)
4 zero
PHXII07:ALTERNATING CURRENT

356184 A virtual current of 4\(A\) and 50 \(Hz\) flows in an \(AC\) circuit containing a coil. The power consumed in the coil is 240\(W\). If the virtual voltage across the coil is 100\(V\) its inductance will be

1 \(\frac{1}{{5\pi }}H\)
2 \(\frac{1}{{3\pi }}H\)
3 \(\frac{1}{{9\pi }}H\)
4 \(\frac{1}{{7\pi }}H\)
PHXII07:ALTERNATING CURRENT

356185 A resistor of \(500\Omega \), an inductance of 0.5 \(H\) are in series with an \(a.c.\) voltage source which is given by \(V = 100\sqrt 2 \sin (1000t)\). The power factor of the combination is

1 \(\frac{1}{{\sqrt 2 }}\)
2 \(\frac{1}{{\sqrt 3 }}\)
3 \(0.5\)
4 \(0.6\)
KCET - 2012
PHXII07:ALTERNATING CURRENT

356186 Given below are two statements:
Statement-I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II : In ac circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the above statements, choose the correct answer from the options given below:

1 Both Statement I and Statement II are true.
2 Both Statement I and Statement II are false.
3 Statement I is true but Statement II in false.
4 Staement I is false but Statement II is true.
JEE - 2022
PHXII07:ALTERNATING CURRENT

356187 For a series \(L - C - R\) circuit at resonance, the statement which is not true?

1 Peak energy stored by a capacitor = peak energy stored by an inductor.
2 Average power = apparent power
3 Wattless current is zero
4 Power factor is zero
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PHXII07:ALTERNATING CURRENT

356183 An alternating current generator has an internal resistance \(R_{g}\) and an internal reactance \(X_{g}\). It is used to supply power to a passive load consisting of a resistance \(R_{g}\) and a reactance \(X_{L}\). For maximum power to be delivered from the generator to the load, the value of \(X_{L}\) is equal to

1 \(X_{g}\)
2 \(R_{g}\)
3 \(-X_{g}\)
4 zero
PHXII07:ALTERNATING CURRENT

356184 A virtual current of 4\(A\) and 50 \(Hz\) flows in an \(AC\) circuit containing a coil. The power consumed in the coil is 240\(W\). If the virtual voltage across the coil is 100\(V\) its inductance will be

1 \(\frac{1}{{5\pi }}H\)
2 \(\frac{1}{{3\pi }}H\)
3 \(\frac{1}{{9\pi }}H\)
4 \(\frac{1}{{7\pi }}H\)
PHXII07:ALTERNATING CURRENT

356185 A resistor of \(500\Omega \), an inductance of 0.5 \(H\) are in series with an \(a.c.\) voltage source which is given by \(V = 100\sqrt 2 \sin (1000t)\). The power factor of the combination is

1 \(\frac{1}{{\sqrt 2 }}\)
2 \(\frac{1}{{\sqrt 3 }}\)
3 \(0.5\)
4 \(0.6\)
KCET - 2012
PHXII07:ALTERNATING CURRENT

356186 Given below are two statements:
Statement-I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II : In ac circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the above statements, choose the correct answer from the options given below:

1 Both Statement I and Statement II are true.
2 Both Statement I and Statement II are false.
3 Statement I is true but Statement II in false.
4 Staement I is false but Statement II is true.
JEE - 2022
PHXII07:ALTERNATING CURRENT

356187 For a series \(L - C - R\) circuit at resonance, the statement which is not true?

1 Peak energy stored by a capacitor = peak energy stored by an inductor.
2 Average power = apparent power
3 Wattless current is zero
4 Power factor is zero
For More Updates join with Us
PHXII07:ALTERNATING CURRENT

356183 An alternating current generator has an internal resistance \(R_{g}\) and an internal reactance \(X_{g}\). It is used to supply power to a passive load consisting of a resistance \(R_{g}\) and a reactance \(X_{L}\). For maximum power to be delivered from the generator to the load, the value of \(X_{L}\) is equal to

1 \(X_{g}\)
2 \(R_{g}\)
3 \(-X_{g}\)
4 zero
PHXII07:ALTERNATING CURRENT

356184 A virtual current of 4\(A\) and 50 \(Hz\) flows in an \(AC\) circuit containing a coil. The power consumed in the coil is 240\(W\). If the virtual voltage across the coil is 100\(V\) its inductance will be

1 \(\frac{1}{{5\pi }}H\)
2 \(\frac{1}{{3\pi }}H\)
3 \(\frac{1}{{9\pi }}H\)
4 \(\frac{1}{{7\pi }}H\)
PHXII07:ALTERNATING CURRENT

356185 A resistor of \(500\Omega \), an inductance of 0.5 \(H\) are in series with an \(a.c.\) voltage source which is given by \(V = 100\sqrt 2 \sin (1000t)\). The power factor of the combination is

1 \(\frac{1}{{\sqrt 2 }}\)
2 \(\frac{1}{{\sqrt 3 }}\)
3 \(0.5\)
4 \(0.6\)
KCET - 2012
PHXII07:ALTERNATING CURRENT

356186 Given below are two statements:
Statement-I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II : In ac circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the above statements, choose the correct answer from the options given below:

1 Both Statement I and Statement II are true.
2 Both Statement I and Statement II are false.
3 Statement I is true but Statement II in false.
4 Staement I is false but Statement II is true.
JEE - 2022
PHXII07:ALTERNATING CURRENT

356187 For a series \(L - C - R\) circuit at resonance, the statement which is not true?

1 Peak energy stored by a capacitor = peak energy stored by an inductor.
2 Average power = apparent power
3 Wattless current is zero
4 Power factor is zero
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PHXII07:ALTERNATING CURRENT

356183 An alternating current generator has an internal resistance \(R_{g}\) and an internal reactance \(X_{g}\). It is used to supply power to a passive load consisting of a resistance \(R_{g}\) and a reactance \(X_{L}\). For maximum power to be delivered from the generator to the load, the value of \(X_{L}\) is equal to

1 \(X_{g}\)
2 \(R_{g}\)
3 \(-X_{g}\)
4 zero
PHXII07:ALTERNATING CURRENT

356184 A virtual current of 4\(A\) and 50 \(Hz\) flows in an \(AC\) circuit containing a coil. The power consumed in the coil is 240\(W\). If the virtual voltage across the coil is 100\(V\) its inductance will be

1 \(\frac{1}{{5\pi }}H\)
2 \(\frac{1}{{3\pi }}H\)
3 \(\frac{1}{{9\pi }}H\)
4 \(\frac{1}{{7\pi }}H\)
PHXII07:ALTERNATING CURRENT

356185 A resistor of \(500\Omega \), an inductance of 0.5 \(H\) are in series with an \(a.c.\) voltage source which is given by \(V = 100\sqrt 2 \sin (1000t)\). The power factor of the combination is

1 \(\frac{1}{{\sqrt 2 }}\)
2 \(\frac{1}{{\sqrt 3 }}\)
3 \(0.5\)
4 \(0.6\)
KCET - 2012
PHXII07:ALTERNATING CURRENT

356186 Given below are two statements:
Statement-I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II : In ac circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the above statements, choose the correct answer from the options given below:

1 Both Statement I and Statement II are true.
2 Both Statement I and Statement II are false.
3 Statement I is true but Statement II in false.
4 Staement I is false but Statement II is true.
JEE - 2022
PHXII07:ALTERNATING CURRENT

356187 For a series \(L - C - R\) circuit at resonance, the statement which is not true?

1 Peak energy stored by a capacitor = peak energy stored by an inductor.
2 Average power = apparent power
3 Wattless current is zero
4 Power factor is zero
Join With Us for More Updates
PHXII07:ALTERNATING CURRENT

356183 An alternating current generator has an internal resistance \(R_{g}\) and an internal reactance \(X_{g}\). It is used to supply power to a passive load consisting of a resistance \(R_{g}\) and a reactance \(X_{L}\). For maximum power to be delivered from the generator to the load, the value of \(X_{L}\) is equal to

1 \(X_{g}\)
2 \(R_{g}\)
3 \(-X_{g}\)
4 zero
PHXII07:ALTERNATING CURRENT

356184 A virtual current of 4\(A\) and 50 \(Hz\) flows in an \(AC\) circuit containing a coil. The power consumed in the coil is 240\(W\). If the virtual voltage across the coil is 100\(V\) its inductance will be

1 \(\frac{1}{{5\pi }}H\)
2 \(\frac{1}{{3\pi }}H\)
3 \(\frac{1}{{9\pi }}H\)
4 \(\frac{1}{{7\pi }}H\)
PHXII07:ALTERNATING CURRENT

356185 A resistor of \(500\Omega \), an inductance of 0.5 \(H\) are in series with an \(a.c.\) voltage source which is given by \(V = 100\sqrt 2 \sin (1000t)\). The power factor of the combination is

1 \(\frac{1}{{\sqrt 2 }}\)
2 \(\frac{1}{{\sqrt 3 }}\)
3 \(0.5\)
4 \(0.6\)
KCET - 2012
PHXII07:ALTERNATING CURRENT

356186 Given below are two statements:
Statement-I: The reactance of an ac circuit is zero. It is possible that the circuit contains a capacitor and an inductor.
Statement-II : In ac circuit, the average power delivered by the source never becomes zero.
In the light of the above statements, choose the correct answer from the above statements, choose the correct answer from the options given below:

1 Both Statement I and Statement II are true.
2 Both Statement I and Statement II are false.
3 Statement I is true but Statement II in false.
4 Staement I is false but Statement II is true.
JEE - 2022
PHXII07:ALTERNATING CURRENT

356187 For a series \(L - C - R\) circuit at resonance, the statement which is not true?

1 Peak energy stored by a capacitor = peak energy stored by an inductor.
2 Average power = apparent power
3 Wattless current is zero
4 Power factor is zero