356153 In a series \(LCR\) circuit, the voltage leads current. Now the driving frequency is decreased slightly. Match columns I and II.
Column I
Column II
A
Current amplitude
P
Increases
B
Phase constant
Q
Decreases
C
Power developed in resistor
R
Remains same
D
Impedance
S
May increase or decrease

356154 Assertion :
By only knowing the power factor for a given LCR circuit it is not possible to tell whether the applied alternating e.m.f. leads or lags the current.
Reason :
\(\cos \theta = \cos ( - \theta )\)

356155 As given in the figure, a series circuit connected across a 100\(V\), 60 \(Hz\) line consists of a capacitor of capacitive reactance \(30\Omega \), a resistor of \(44\Omega \) and a coil of inductive reactance \(90\Omega \) and resistance \(36\Omega \). The power dissipated in the coil is:

356156 An inductor 20 \(mH\), a capacitor \(50\mu F\) and a resistor \(40\Omega \) are connected in series across a source of emf \(V = 10\,\sin \,340t\). The power loss in \(A.C.\) circuit is

356157 An inductor \(20\,mH\), a capacitor \(100\,\mu F\) and a resistor \(50\,\Omega \) are connected in series across a source of \(emf\,V = 10\sin 314\,t\). The power loss in the circuit is

356153 In a series \(LCR\) circuit, the voltage leads current. Now the driving frequency is decreased slightly. Match columns I and II.
Column I
Column II
A
Current amplitude
P
Increases
B
Phase constant
Q
Decreases
C
Power developed in resistor
R
Remains same
D
Impedance
S
May increase or decrease

356154 Assertion :
By only knowing the power factor for a given LCR circuit it is not possible to tell whether the applied alternating e.m.f. leads or lags the current.
Reason :
\(\cos \theta = \cos ( - \theta )\)

356155 As given in the figure, a series circuit connected across a 100\(V\), 60 \(Hz\) line consists of a capacitor of capacitive reactance \(30\Omega \), a resistor of \(44\Omega \) and a coil of inductive reactance \(90\Omega \) and resistance \(36\Omega \). The power dissipated in the coil is:

356156 An inductor 20 \(mH\), a capacitor \(50\mu F\) and a resistor \(40\Omega \) are connected in series across a source of emf \(V = 10\,\sin \,340t\). The power loss in \(A.C.\) circuit is

356157 An inductor \(20\,mH\), a capacitor \(100\,\mu F\) and a resistor \(50\,\Omega \) are connected in series across a source of \(emf\,V = 10\sin 314\,t\). The power loss in the circuit is

356153 In a series \(LCR\) circuit, the voltage leads current. Now the driving frequency is decreased slightly. Match columns I and II.
Column I
Column II
A
Current amplitude
P
Increases
B
Phase constant
Q
Decreases
C
Power developed in resistor
R
Remains same
D
Impedance
S
May increase or decrease

356154 Assertion :
By only knowing the power factor for a given LCR circuit it is not possible to tell whether the applied alternating e.m.f. leads or lags the current.
Reason :
\(\cos \theta = \cos ( - \theta )\)

356155 As given in the figure, a series circuit connected across a 100\(V\), 60 \(Hz\) line consists of a capacitor of capacitive reactance \(30\Omega \), a resistor of \(44\Omega \) and a coil of inductive reactance \(90\Omega \) and resistance \(36\Omega \). The power dissipated in the coil is:

356156 An inductor 20 \(mH\), a capacitor \(50\mu F\) and a resistor \(40\Omega \) are connected in series across a source of emf \(V = 10\,\sin \,340t\). The power loss in \(A.C.\) circuit is

356157 An inductor \(20\,mH\), a capacitor \(100\,\mu F\) and a resistor \(50\,\Omega \) are connected in series across a source of \(emf\,V = 10\sin 314\,t\). The power loss in the circuit is

356153 In a series \(LCR\) circuit, the voltage leads current. Now the driving frequency is decreased slightly. Match columns I and II.
Column I
Column II
A
Current amplitude
P
Increases
B
Phase constant
Q
Decreases
C
Power developed in resistor
R
Remains same
D
Impedance
S
May increase or decrease

356154 Assertion :
By only knowing the power factor for a given LCR circuit it is not possible to tell whether the applied alternating e.m.f. leads or lags the current.
Reason :
\(\cos \theta = \cos ( - \theta )\)

356155 As given in the figure, a series circuit connected across a 100\(V\), 60 \(Hz\) line consists of a capacitor of capacitive reactance \(30\Omega \), a resistor of \(44\Omega \) and a coil of inductive reactance \(90\Omega \) and resistance \(36\Omega \). The power dissipated in the coil is:

356156 An inductor 20 \(mH\), a capacitor \(50\mu F\) and a resistor \(40\Omega \) are connected in series across a source of emf \(V = 10\,\sin \,340t\). The power loss in \(A.C.\) circuit is

356157 An inductor \(20\,mH\), a capacitor \(100\,\mu F\) and a resistor \(50\,\Omega \) are connected in series across a source of \(emf\,V = 10\sin 314\,t\). The power loss in the circuit is

356153 In a series \(LCR\) circuit, the voltage leads current. Now the driving frequency is decreased slightly. Match columns I and II.
Column I
Column II
A
Current amplitude
P
Increases
B
Phase constant
Q
Decreases
C
Power developed in resistor
R
Remains same
D
Impedance
S
May increase or decrease

356154 Assertion :
By only knowing the power factor for a given LCR circuit it is not possible to tell whether the applied alternating e.m.f. leads or lags the current.
Reason :
\(\cos \theta = \cos ( - \theta )\)

356155 As given in the figure, a series circuit connected across a 100\(V\), 60 \(Hz\) line consists of a capacitor of capacitive reactance \(30\Omega \), a resistor of \(44\Omega \) and a coil of inductive reactance \(90\Omega \) and resistance \(36\Omega \). The power dissipated in the coil is:

356156 An inductor 20 \(mH\), a capacitor \(50\mu F\) and a resistor \(40\Omega \) are connected in series across a source of emf \(V = 10\,\sin \,340t\). The power loss in \(A.C.\) circuit is

356157 An inductor \(20\,mH\), a capacitor \(100\,\mu F\) and a resistor \(50\,\Omega \) are connected in series across a source of \(emf\,V = 10\sin 314\,t\). The power loss in the circuit is