RC Circuits
PHXII03:CURRENT ELECTRICITY

357507 In the figure below, what is the potential difference between the points \(A\) and \(B\) and \(B\) and \(C\) respectively, in steady state?
supporting img

1 \({V_{AB}} = 75V,{V_{BC}} = 25V\)
2 \({V_{AB}} = {V_{BC}} = 50V\)
3 \({V_{AB}} = 25V,{V_{BC}} = 75V\)
4 \({V_{BC}} = {V_{AB}} = 100V\)
PHXII03:CURRENT ELECTRICITY

357508 In the circuit shown, when the switch is closed, the capacitor charges with a time constant
supporting img

1 \(RC\)
2 \(2\,RC\)
3 \((1{\rm{/}}2)RC\)
4 \(RC\ln 2\)
PHXII03:CURRENT ELECTRICITY

357509 What will be the current (in \(mA\) ) through the \(300 \,\Omega\) resistor in the given circuit after the switch \('K'\) is made on?
supporting img

1 \(5\,mA\)
2 \(3\,mA\)
3 \(15\,mA\)
4 \(10\,mA\)
PHXII03:CURRENT ELECTRICITY

357510 In the circuit shown in the figure \({k_1}\) is open. The charge on capacitor \(C\) in steady state is \({q_1}\). Now key is closed and at steady state charge on \(C\) is \({q_2}\). The ratio of charges \({q_1}/{q_2}\) is.
supporting img

1 \(5/3\)
2 \(3/5\)
3 \(1\)
4 \(2/3\)
PHXII03:CURRENT ELECTRICITY

357511 The plates of a capacitor are charged to a potential difference of 100 \(V\) and then connected across a resistor. The potential difference across the capacitor decays exponentially with respect to time. After one second the potential difference between the plates of the capacitor is \(80\,V.\) What is the fraction of the stored energy which has been dissipated?

1 0.36
2 0.75
3 0.12
4 0.56
PHXII03:CURRENT ELECTRICITY

357507 In the figure below, what is the potential difference between the points \(A\) and \(B\) and \(B\) and \(C\) respectively, in steady state?
supporting img

1 \({V_{AB}} = 75V,{V_{BC}} = 25V\)
2 \({V_{AB}} = {V_{BC}} = 50V\)
3 \({V_{AB}} = 25V,{V_{BC}} = 75V\)
4 \({V_{BC}} = {V_{AB}} = 100V\)
PHXII03:CURRENT ELECTRICITY

357508 In the circuit shown, when the switch is closed, the capacitor charges with a time constant
supporting img

1 \(RC\)
2 \(2\,RC\)
3 \((1{\rm{/}}2)RC\)
4 \(RC\ln 2\)
PHXII03:CURRENT ELECTRICITY

357509 What will be the current (in \(mA\) ) through the \(300 \,\Omega\) resistor in the given circuit after the switch \('K'\) is made on?
supporting img

1 \(5\,mA\)
2 \(3\,mA\)
3 \(15\,mA\)
4 \(10\,mA\)
PHXII03:CURRENT ELECTRICITY

357510 In the circuit shown in the figure \({k_1}\) is open. The charge on capacitor \(C\) in steady state is \({q_1}\). Now key is closed and at steady state charge on \(C\) is \({q_2}\). The ratio of charges \({q_1}/{q_2}\) is.
supporting img

1 \(5/3\)
2 \(3/5\)
3 \(1\)
4 \(2/3\)
PHXII03:CURRENT ELECTRICITY

357511 The plates of a capacitor are charged to a potential difference of 100 \(V\) and then connected across a resistor. The potential difference across the capacitor decays exponentially with respect to time. After one second the potential difference between the plates of the capacitor is \(80\,V.\) What is the fraction of the stored energy which has been dissipated?

1 0.36
2 0.75
3 0.12
4 0.56
PHXII03:CURRENT ELECTRICITY

357507 In the figure below, what is the potential difference between the points \(A\) and \(B\) and \(B\) and \(C\) respectively, in steady state?
supporting img

1 \({V_{AB}} = 75V,{V_{BC}} = 25V\)
2 \({V_{AB}} = {V_{BC}} = 50V\)
3 \({V_{AB}} = 25V,{V_{BC}} = 75V\)
4 \({V_{BC}} = {V_{AB}} = 100V\)
PHXII03:CURRENT ELECTRICITY

357508 In the circuit shown, when the switch is closed, the capacitor charges with a time constant
supporting img

1 \(RC\)
2 \(2\,RC\)
3 \((1{\rm{/}}2)RC\)
4 \(RC\ln 2\)
PHXII03:CURRENT ELECTRICITY

357509 What will be the current (in \(mA\) ) through the \(300 \,\Omega\) resistor in the given circuit after the switch \('K'\) is made on?
supporting img

1 \(5\,mA\)
2 \(3\,mA\)
3 \(15\,mA\)
4 \(10\,mA\)
PHXII03:CURRENT ELECTRICITY

357510 In the circuit shown in the figure \({k_1}\) is open. The charge on capacitor \(C\) in steady state is \({q_1}\). Now key is closed and at steady state charge on \(C\) is \({q_2}\). The ratio of charges \({q_1}/{q_2}\) is.
supporting img

1 \(5/3\)
2 \(3/5\)
3 \(1\)
4 \(2/3\)
PHXII03:CURRENT ELECTRICITY

357511 The plates of a capacitor are charged to a potential difference of 100 \(V\) and then connected across a resistor. The potential difference across the capacitor decays exponentially with respect to time. After one second the potential difference between the plates of the capacitor is \(80\,V.\) What is the fraction of the stored energy which has been dissipated?

1 0.36
2 0.75
3 0.12
4 0.56
PHXII03:CURRENT ELECTRICITY

357507 In the figure below, what is the potential difference between the points \(A\) and \(B\) and \(B\) and \(C\) respectively, in steady state?
supporting img

1 \({V_{AB}} = 75V,{V_{BC}} = 25V\)
2 \({V_{AB}} = {V_{BC}} = 50V\)
3 \({V_{AB}} = 25V,{V_{BC}} = 75V\)
4 \({V_{BC}} = {V_{AB}} = 100V\)
PHXII03:CURRENT ELECTRICITY

357508 In the circuit shown, when the switch is closed, the capacitor charges with a time constant
supporting img

1 \(RC\)
2 \(2\,RC\)
3 \((1{\rm{/}}2)RC\)
4 \(RC\ln 2\)
PHXII03:CURRENT ELECTRICITY

357509 What will be the current (in \(mA\) ) through the \(300 \,\Omega\) resistor in the given circuit after the switch \('K'\) is made on?
supporting img

1 \(5\,mA\)
2 \(3\,mA\)
3 \(15\,mA\)
4 \(10\,mA\)
PHXII03:CURRENT ELECTRICITY

357510 In the circuit shown in the figure \({k_1}\) is open. The charge on capacitor \(C\) in steady state is \({q_1}\). Now key is closed and at steady state charge on \(C\) is \({q_2}\). The ratio of charges \({q_1}/{q_2}\) is.
supporting img

1 \(5/3\)
2 \(3/5\)
3 \(1\)
4 \(2/3\)
PHXII03:CURRENT ELECTRICITY

357511 The plates of a capacitor are charged to a potential difference of 100 \(V\) and then connected across a resistor. The potential difference across the capacitor decays exponentially with respect to time. After one second the potential difference between the plates of the capacitor is \(80\,V.\) What is the fraction of the stored energy which has been dissipated?

1 0.36
2 0.75
3 0.12
4 0.56
PHXII03:CURRENT ELECTRICITY

357507 In the figure below, what is the potential difference between the points \(A\) and \(B\) and \(B\) and \(C\) respectively, in steady state?
supporting img

1 \({V_{AB}} = 75V,{V_{BC}} = 25V\)
2 \({V_{AB}} = {V_{BC}} = 50V\)
3 \({V_{AB}} = 25V,{V_{BC}} = 75V\)
4 \({V_{BC}} = {V_{AB}} = 100V\)
PHXII03:CURRENT ELECTRICITY

357508 In the circuit shown, when the switch is closed, the capacitor charges with a time constant
supporting img

1 \(RC\)
2 \(2\,RC\)
3 \((1{\rm{/}}2)RC\)
4 \(RC\ln 2\)
PHXII03:CURRENT ELECTRICITY

357509 What will be the current (in \(mA\) ) through the \(300 \,\Omega\) resistor in the given circuit after the switch \('K'\) is made on?
supporting img

1 \(5\,mA\)
2 \(3\,mA\)
3 \(15\,mA\)
4 \(10\,mA\)
PHXII03:CURRENT ELECTRICITY

357510 In the circuit shown in the figure \({k_1}\) is open. The charge on capacitor \(C\) in steady state is \({q_1}\). Now key is closed and at steady state charge on \(C\) is \({q_2}\). The ratio of charges \({q_1}/{q_2}\) is.
supporting img

1 \(5/3\)
2 \(3/5\)
3 \(1\)
4 \(2/3\)
PHXII03:CURRENT ELECTRICITY

357511 The plates of a capacitor are charged to a potential difference of 100 \(V\) and then connected across a resistor. The potential difference across the capacitor decays exponentially with respect to time. After one second the potential difference between the plates of the capacitor is \(80\,V.\) What is the fraction of the stored energy which has been dissipated?

1 0.36
2 0.75
3 0.12
4 0.56