D.C. Circuits
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII06:ELECTROMAGNETIC INDUCTION

358375 In the circuit shown, the switch \(S\) is shifted to position 2 from position 1 at \(t=0\), having been in position 1 for a long time. Find the current in the circuit as a function of time.
supporting img

1 \(\dfrac{\varepsilon}{R}\)
2 \(\dfrac{\varepsilon}{2 R}\)
3 \(\dfrac{2 \varepsilon}{R}\)
4 \(\dfrac{\varepsilon}{3 R}\)
PHXII06:ELECTROMAGNETIC INDUCTION

358376 In the circuit shown here, the point ' \(C\) ' is kept connected to point ' \(A\) ' till the current flowing through the circuit becomes constant. Afterward, suddenly, point ' \(C\) ' is disconnected from point ' \(A\) ' and connected to point ' \(B\) ' at time \(t = 0\). Ratio of the voltage across resistance and the inductor at \(t = L/R\) will be equal to:
supporting img

1 -1
2 \(\dfrac{1-e}{e}\)
3 \(\dfrac{e}{1-e}\)
4 1
PHXII06:ELECTROMAGNETIC INDUCTION

358377 An inductor coil stores \(32 {~J}\) of magnetic field energy and dissipates energy as heat at the rate of \(320 {~W}\) when a current of \(4 {~A}\) is passed through it. The time constant of the circuit when this coil is joined across an ideal battery is

1 \(0.7\,s\)
2 \(0.4\,s\)
3 \(0.9\,s\)
4 \(0.2\,s\)
PHXII06:ELECTROMAGNETIC INDUCTION

358378 \(A B\) is a part of circuit. Find the potential difference \({V_A} - {V_B}\) if current \(i = 2\;A\) and is increasing at the rate of \(1amp/\sec .\)
supporting img

1 \(5\;V\)
2 \(6\;V\)
3 \(1\;V\)
4 \(10\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358375 In the circuit shown, the switch \(S\) is shifted to position 2 from position 1 at \(t=0\), having been in position 1 for a long time. Find the current in the circuit as a function of time.
supporting img

1 \(\dfrac{\varepsilon}{R}\)
2 \(\dfrac{\varepsilon}{2 R}\)
3 \(\dfrac{2 \varepsilon}{R}\)
4 \(\dfrac{\varepsilon}{3 R}\)
PHXII06:ELECTROMAGNETIC INDUCTION

358376 In the circuit shown here, the point ' \(C\) ' is kept connected to point ' \(A\) ' till the current flowing through the circuit becomes constant. Afterward, suddenly, point ' \(C\) ' is disconnected from point ' \(A\) ' and connected to point ' \(B\) ' at time \(t = 0\). Ratio of the voltage across resistance and the inductor at \(t = L/R\) will be equal to:
supporting img

1 -1
2 \(\dfrac{1-e}{e}\)
3 \(\dfrac{e}{1-e}\)
4 1
PHXII06:ELECTROMAGNETIC INDUCTION

358377 An inductor coil stores \(32 {~J}\) of magnetic field energy and dissipates energy as heat at the rate of \(320 {~W}\) when a current of \(4 {~A}\) is passed through it. The time constant of the circuit when this coil is joined across an ideal battery is

1 \(0.7\,s\)
2 \(0.4\,s\)
3 \(0.9\,s\)
4 \(0.2\,s\)
PHXII06:ELECTROMAGNETIC INDUCTION

358378 \(A B\) is a part of circuit. Find the potential difference \({V_A} - {V_B}\) if current \(i = 2\;A\) and is increasing at the rate of \(1amp/\sec .\)
supporting img

1 \(5\;V\)
2 \(6\;V\)
3 \(1\;V\)
4 \(10\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358375 In the circuit shown, the switch \(S\) is shifted to position 2 from position 1 at \(t=0\), having been in position 1 for a long time. Find the current in the circuit as a function of time.
supporting img

1 \(\dfrac{\varepsilon}{R}\)
2 \(\dfrac{\varepsilon}{2 R}\)
3 \(\dfrac{2 \varepsilon}{R}\)
4 \(\dfrac{\varepsilon}{3 R}\)
PHXII06:ELECTROMAGNETIC INDUCTION

358376 In the circuit shown here, the point ' \(C\) ' is kept connected to point ' \(A\) ' till the current flowing through the circuit becomes constant. Afterward, suddenly, point ' \(C\) ' is disconnected from point ' \(A\) ' and connected to point ' \(B\) ' at time \(t = 0\). Ratio of the voltage across resistance and the inductor at \(t = L/R\) will be equal to:
supporting img

1 -1
2 \(\dfrac{1-e}{e}\)
3 \(\dfrac{e}{1-e}\)
4 1
PHXII06:ELECTROMAGNETIC INDUCTION

358377 An inductor coil stores \(32 {~J}\) of magnetic field energy and dissipates energy as heat at the rate of \(320 {~W}\) when a current of \(4 {~A}\) is passed through it. The time constant of the circuit when this coil is joined across an ideal battery is

1 \(0.7\,s\)
2 \(0.4\,s\)
3 \(0.9\,s\)
4 \(0.2\,s\)
PHXII06:ELECTROMAGNETIC INDUCTION

358378 \(A B\) is a part of circuit. Find the potential difference \({V_A} - {V_B}\) if current \(i = 2\;A\) and is increasing at the rate of \(1amp/\sec .\)
supporting img

1 \(5\;V\)
2 \(6\;V\)
3 \(1\;V\)
4 \(10\;V\)
PHXII06:ELECTROMAGNETIC INDUCTION

358375 In the circuit shown, the switch \(S\) is shifted to position 2 from position 1 at \(t=0\), having been in position 1 for a long time. Find the current in the circuit as a function of time.
supporting img

1 \(\dfrac{\varepsilon}{R}\)
2 \(\dfrac{\varepsilon}{2 R}\)
3 \(\dfrac{2 \varepsilon}{R}\)
4 \(\dfrac{\varepsilon}{3 R}\)
PHXII06:ELECTROMAGNETIC INDUCTION

358376 In the circuit shown here, the point ' \(C\) ' is kept connected to point ' \(A\) ' till the current flowing through the circuit becomes constant. Afterward, suddenly, point ' \(C\) ' is disconnected from point ' \(A\) ' and connected to point ' \(B\) ' at time \(t = 0\). Ratio of the voltage across resistance and the inductor at \(t = L/R\) will be equal to:
supporting img

1 -1
2 \(\dfrac{1-e}{e}\)
3 \(\dfrac{e}{1-e}\)
4 1
PHXII06:ELECTROMAGNETIC INDUCTION

358377 An inductor coil stores \(32 {~J}\) of magnetic field energy and dissipates energy as heat at the rate of \(320 {~W}\) when a current of \(4 {~A}\) is passed through it. The time constant of the circuit when this coil is joined across an ideal battery is

1 \(0.7\,s\)
2 \(0.4\,s\)
3 \(0.9\,s\)
4 \(0.2\,s\)
PHXII06:ELECTROMAGNETIC INDUCTION

358378 \(A B\) is a part of circuit. Find the potential difference \({V_A} - {V_B}\) if current \(i = 2\;A\) and is increasing at the rate of \(1amp/\sec .\)
supporting img

1 \(5\;V\)
2 \(6\;V\)
3 \(1\;V\)
4 \(10\;V\)