Magnetic Force
PHXII04:MOVING CHARGES AND MAGNETISM

362724 When deuterium and helium are subjected to an accelerating field simultaneously then,

1 Both acquire same energy
2 Deuterium accelerates faster
3 Helium accelerates faster
4 Neither of them is accelerated.
PHXII04:MOVING CHARGES AND MAGNETISM

362725 Assertion :
If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic field in this region.
Reason :
Force on electron depends on its velocity also.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII04:MOVING CHARGES AND MAGNETISM

362726 An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then

1 the electron will continue to move with uniform velocity along the axis of the solenoid.
2 the electron will be accelerated along the axis.
3 the electron path will be circular about the axis.
4 the electron will experience a force at \(45^{\circ}\) to the axis and execute a helical path.
PHXII04:MOVING CHARGES AND MAGNETISM

362727 A proton moving with a constant velocity passes through a region of space without any change in its velocity. If \(\vec{E}\) and \(\vec{B}\) represent the electric and magnetic fields respectively, then the region of space may have :
\(({\rm{A}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E = 0,B = 0\,\,\,\,\,\,\,({\rm{B}}){\mkern 1mu} {\mkern 1mu} \,E = 0,B \ne 0\)
\(({\rm{C}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B = 0{\rm{ }}\,\,\,\,\,\,\,({\rm{D}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B \ne 0{\rm{ }}\)

1 (A), (B) and (D) only
2 (B), (C) and (D) only
3 (A), (B) and (C) only
4 (A), (C) and (D) only
PHXII04:MOVING CHARGES AND MAGNETISM

362728 A charge particle is projected in a magnetic field \({\vec{B}=(5 \hat{i}+12 \hat{j}) \times 10^{-3} T}\). If magnetic force acting on the particle is \({\vec{F}=(24 \hat{i}-x \hat{j}) \times 10^{-2} N}\), then \({x}\) is

1 3
2 6
3 10
4 5
PHXII04:MOVING CHARGES AND MAGNETISM

362724 When deuterium and helium are subjected to an accelerating field simultaneously then,

1 Both acquire same energy
2 Deuterium accelerates faster
3 Helium accelerates faster
4 Neither of them is accelerated.
PHXII04:MOVING CHARGES AND MAGNETISM

362725 Assertion :
If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic field in this region.
Reason :
Force on electron depends on its velocity also.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII04:MOVING CHARGES AND MAGNETISM

362726 An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then

1 the electron will continue to move with uniform velocity along the axis of the solenoid.
2 the electron will be accelerated along the axis.
3 the electron path will be circular about the axis.
4 the electron will experience a force at \(45^{\circ}\) to the axis and execute a helical path.
PHXII04:MOVING CHARGES AND MAGNETISM

362727 A proton moving with a constant velocity passes through a region of space without any change in its velocity. If \(\vec{E}\) and \(\vec{B}\) represent the electric and magnetic fields respectively, then the region of space may have :
\(({\rm{A}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E = 0,B = 0\,\,\,\,\,\,\,({\rm{B}}){\mkern 1mu} {\mkern 1mu} \,E = 0,B \ne 0\)
\(({\rm{C}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B = 0{\rm{ }}\,\,\,\,\,\,\,({\rm{D}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B \ne 0{\rm{ }}\)

1 (A), (B) and (D) only
2 (B), (C) and (D) only
3 (A), (B) and (C) only
4 (A), (C) and (D) only
PHXII04:MOVING CHARGES AND MAGNETISM

362728 A charge particle is projected in a magnetic field \({\vec{B}=(5 \hat{i}+12 \hat{j}) \times 10^{-3} T}\). If magnetic force acting on the particle is \({\vec{F}=(24 \hat{i}-x \hat{j}) \times 10^{-2} N}\), then \({x}\) is

1 3
2 6
3 10
4 5
PHXII04:MOVING CHARGES AND MAGNETISM

362724 When deuterium and helium are subjected to an accelerating field simultaneously then,

1 Both acquire same energy
2 Deuterium accelerates faster
3 Helium accelerates faster
4 Neither of them is accelerated.
PHXII04:MOVING CHARGES AND MAGNETISM

362725 Assertion :
If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic field in this region.
Reason :
Force on electron depends on its velocity also.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII04:MOVING CHARGES AND MAGNETISM

362726 An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then

1 the electron will continue to move with uniform velocity along the axis of the solenoid.
2 the electron will be accelerated along the axis.
3 the electron path will be circular about the axis.
4 the electron will experience a force at \(45^{\circ}\) to the axis and execute a helical path.
PHXII04:MOVING CHARGES AND MAGNETISM

362727 A proton moving with a constant velocity passes through a region of space without any change in its velocity. If \(\vec{E}\) and \(\vec{B}\) represent the electric and magnetic fields respectively, then the region of space may have :
\(({\rm{A}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E = 0,B = 0\,\,\,\,\,\,\,({\rm{B}}){\mkern 1mu} {\mkern 1mu} \,E = 0,B \ne 0\)
\(({\rm{C}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B = 0{\rm{ }}\,\,\,\,\,\,\,({\rm{D}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B \ne 0{\rm{ }}\)

1 (A), (B) and (D) only
2 (B), (C) and (D) only
3 (A), (B) and (C) only
4 (A), (C) and (D) only
PHXII04:MOVING CHARGES AND MAGNETISM

362728 A charge particle is projected in a magnetic field \({\vec{B}=(5 \hat{i}+12 \hat{j}) \times 10^{-3} T}\). If magnetic force acting on the particle is \({\vec{F}=(24 \hat{i}-x \hat{j}) \times 10^{-2} N}\), then \({x}\) is

1 3
2 6
3 10
4 5
PHXII04:MOVING CHARGES AND MAGNETISM

362724 When deuterium and helium are subjected to an accelerating field simultaneously then,

1 Both acquire same energy
2 Deuterium accelerates faster
3 Helium accelerates faster
4 Neither of them is accelerated.
PHXII04:MOVING CHARGES AND MAGNETISM

362725 Assertion :
If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic field in this region.
Reason :
Force on electron depends on its velocity also.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII04:MOVING CHARGES AND MAGNETISM

362726 An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then

1 the electron will continue to move with uniform velocity along the axis of the solenoid.
2 the electron will be accelerated along the axis.
3 the electron path will be circular about the axis.
4 the electron will experience a force at \(45^{\circ}\) to the axis and execute a helical path.
PHXII04:MOVING CHARGES AND MAGNETISM

362727 A proton moving with a constant velocity passes through a region of space without any change in its velocity. If \(\vec{E}\) and \(\vec{B}\) represent the electric and magnetic fields respectively, then the region of space may have :
\(({\rm{A}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E = 0,B = 0\,\,\,\,\,\,\,({\rm{B}}){\mkern 1mu} {\mkern 1mu} \,E = 0,B \ne 0\)
\(({\rm{C}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B = 0{\rm{ }}\,\,\,\,\,\,\,({\rm{D}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B \ne 0{\rm{ }}\)

1 (A), (B) and (D) only
2 (B), (C) and (D) only
3 (A), (B) and (C) only
4 (A), (C) and (D) only
PHXII04:MOVING CHARGES AND MAGNETISM

362728 A charge particle is projected in a magnetic field \({\vec{B}=(5 \hat{i}+12 \hat{j}) \times 10^{-3} T}\). If magnetic force acting on the particle is \({\vec{F}=(24 \hat{i}-x \hat{j}) \times 10^{-2} N}\), then \({x}\) is

1 3
2 6
3 10
4 5
PHXII04:MOVING CHARGES AND MAGNETISM

362724 When deuterium and helium are subjected to an accelerating field simultaneously then,

1 Both acquire same energy
2 Deuterium accelerates faster
3 Helium accelerates faster
4 Neither of them is accelerated.
PHXII04:MOVING CHARGES AND MAGNETISM

362725 Assertion :
If an electron is not deflected while passing through a certain region of space, then only possibility is that there is no magnetic field in this region.
Reason :
Force on electron depends on its velocity also.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXII04:MOVING CHARGES AND MAGNETISM

362726 An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then

1 the electron will continue to move with uniform velocity along the axis of the solenoid.
2 the electron will be accelerated along the axis.
3 the electron path will be circular about the axis.
4 the electron will experience a force at \(45^{\circ}\) to the axis and execute a helical path.
PHXII04:MOVING CHARGES AND MAGNETISM

362727 A proton moving with a constant velocity passes through a region of space without any change in its velocity. If \(\vec{E}\) and \(\vec{B}\) represent the electric and magnetic fields respectively, then the region of space may have :
\(({\rm{A}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E = 0,B = 0\,\,\,\,\,\,\,({\rm{B}}){\mkern 1mu} {\mkern 1mu} \,E = 0,B \ne 0\)
\(({\rm{C}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B = 0{\rm{ }}\,\,\,\,\,\,\,({\rm{D}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} E \ne 0,B \ne 0{\rm{ }}\)

1 (A), (B) and (D) only
2 (B), (C) and (D) only
3 (A), (B) and (C) only
4 (A), (C) and (D) only
PHXII04:MOVING CHARGES AND MAGNETISM

362728 A charge particle is projected in a magnetic field \({\vec{B}=(5 \hat{i}+12 \hat{j}) \times 10^{-3} T}\). If magnetic force acting on the particle is \({\vec{F}=(24 \hat{i}-x \hat{j}) \times 10^{-2} N}\), then \({x}\) is

1 3
2 6
3 10
4 5