Force between Current Carrying Wires
PHXII04:MOVING CHARGES AND MAGNETISM

362707 \(A\), \(B\) and \(C\) are parallel long conductors carrying currents \(I\), \(I\) and 2\(I\) respectively. Distance between \(A\), \(B\) is \(x\)and \(B\) and \(C\) is also \(x\) . F_{1}\) is the force per unit length exerted by \(B\) on \(A\) and \(F_{2}\) is the force per unit length exerted by \(C\) on \(A\). Choose the correct answer
supporting img

1 \(F_{2}=2 F_{1}\)
2 \(F_{1}=F_{2}\)
3 \(F_{1}=2 F_{2}\)
4 \(F_{1}=-F_{2}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362708 Choose the correct statement. There will be no force experienced if

1 Two parallel wires carry currents in the same direction.
2 Two parallel wires carry currents in the opposite direction.
3 A positive charge is projected between the pole pieces of bar magnet.
4 A positive charge is projected along the axis of a solenoid carrying current.
PHXII04:MOVING CHARGES AND MAGNETISM

362709 \(P, Q\) and \(R\) long parallel straight wires in air, carrying currents as shown. The direction of resultant force on \(R\) is:
supporting img

1 Towards left
2 Towards right
3 The same as that of current in \(Q\)
4 Perpendicular to plane of paper
PHXII04:MOVING CHARGES AND MAGNETISM

362710 A long wire A carries a current of 10\(amp\). Another long wire \(B\), Which is parallel to A and separated by 0.1\(m\) from \(A\), carries a current of 5\(amp\), in the opposite direction to that in \(A\). What is the magnitude and nature of the force experienced per unit length of \(B\)?

1 Repulsive force of \({10^{ - 4}}\;N/m\)
2 Attractive force of \({10^{ - 4}}\;N/m\)
3 Repulsive force of \(2\pi \times {10^{ - 5}}\;N/m\)
4 Attractive force of \(2\pi \times {10^{ - 5}}\;N/m\)
PHXII04:MOVING CHARGES AND MAGNETISM

362707 \(A\), \(B\) and \(C\) are parallel long conductors carrying currents \(I\), \(I\) and 2\(I\) respectively. Distance between \(A\), \(B\) is \(x\)and \(B\) and \(C\) is also \(x\) . F_{1}\) is the force per unit length exerted by \(B\) on \(A\) and \(F_{2}\) is the force per unit length exerted by \(C\) on \(A\). Choose the correct answer
supporting img

1 \(F_{2}=2 F_{1}\)
2 \(F_{1}=F_{2}\)
3 \(F_{1}=2 F_{2}\)
4 \(F_{1}=-F_{2}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362708 Choose the correct statement. There will be no force experienced if

1 Two parallel wires carry currents in the same direction.
2 Two parallel wires carry currents in the opposite direction.
3 A positive charge is projected between the pole pieces of bar magnet.
4 A positive charge is projected along the axis of a solenoid carrying current.
PHXII04:MOVING CHARGES AND MAGNETISM

362709 \(P, Q\) and \(R\) long parallel straight wires in air, carrying currents as shown. The direction of resultant force on \(R\) is:
supporting img

1 Towards left
2 Towards right
3 The same as that of current in \(Q\)
4 Perpendicular to plane of paper
PHXII04:MOVING CHARGES AND MAGNETISM

362710 A long wire A carries a current of 10\(amp\). Another long wire \(B\), Which is parallel to A and separated by 0.1\(m\) from \(A\), carries a current of 5\(amp\), in the opposite direction to that in \(A\). What is the magnitude and nature of the force experienced per unit length of \(B\)?

1 Repulsive force of \({10^{ - 4}}\;N/m\)
2 Attractive force of \({10^{ - 4}}\;N/m\)
3 Repulsive force of \(2\pi \times {10^{ - 5}}\;N/m\)
4 Attractive force of \(2\pi \times {10^{ - 5}}\;N/m\)
PHXII04:MOVING CHARGES AND MAGNETISM

362707 \(A\), \(B\) and \(C\) are parallel long conductors carrying currents \(I\), \(I\) and 2\(I\) respectively. Distance between \(A\), \(B\) is \(x\)and \(B\) and \(C\) is also \(x\) . F_{1}\) is the force per unit length exerted by \(B\) on \(A\) and \(F_{2}\) is the force per unit length exerted by \(C\) on \(A\). Choose the correct answer
supporting img

1 \(F_{2}=2 F_{1}\)
2 \(F_{1}=F_{2}\)
3 \(F_{1}=2 F_{2}\)
4 \(F_{1}=-F_{2}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362708 Choose the correct statement. There will be no force experienced if

1 Two parallel wires carry currents in the same direction.
2 Two parallel wires carry currents in the opposite direction.
3 A positive charge is projected between the pole pieces of bar magnet.
4 A positive charge is projected along the axis of a solenoid carrying current.
PHXII04:MOVING CHARGES AND MAGNETISM

362709 \(P, Q\) and \(R\) long parallel straight wires in air, carrying currents as shown. The direction of resultant force on \(R\) is:
supporting img

1 Towards left
2 Towards right
3 The same as that of current in \(Q\)
4 Perpendicular to plane of paper
PHXII04:MOVING CHARGES AND MAGNETISM

362710 A long wire A carries a current of 10\(amp\). Another long wire \(B\), Which is parallel to A and separated by 0.1\(m\) from \(A\), carries a current of 5\(amp\), in the opposite direction to that in \(A\). What is the magnitude and nature of the force experienced per unit length of \(B\)?

1 Repulsive force of \({10^{ - 4}}\;N/m\)
2 Attractive force of \({10^{ - 4}}\;N/m\)
3 Repulsive force of \(2\pi \times {10^{ - 5}}\;N/m\)
4 Attractive force of \(2\pi \times {10^{ - 5}}\;N/m\)
PHXII04:MOVING CHARGES AND MAGNETISM

362707 \(A\), \(B\) and \(C\) are parallel long conductors carrying currents \(I\), \(I\) and 2\(I\) respectively. Distance between \(A\), \(B\) is \(x\)and \(B\) and \(C\) is also \(x\) . F_{1}\) is the force per unit length exerted by \(B\) on \(A\) and \(F_{2}\) is the force per unit length exerted by \(C\) on \(A\). Choose the correct answer
supporting img

1 \(F_{2}=2 F_{1}\)
2 \(F_{1}=F_{2}\)
3 \(F_{1}=2 F_{2}\)
4 \(F_{1}=-F_{2}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362708 Choose the correct statement. There will be no force experienced if

1 Two parallel wires carry currents in the same direction.
2 Two parallel wires carry currents in the opposite direction.
3 A positive charge is projected between the pole pieces of bar magnet.
4 A positive charge is projected along the axis of a solenoid carrying current.
PHXII04:MOVING CHARGES AND MAGNETISM

362709 \(P, Q\) and \(R\) long parallel straight wires in air, carrying currents as shown. The direction of resultant force on \(R\) is:
supporting img

1 Towards left
2 Towards right
3 The same as that of current in \(Q\)
4 Perpendicular to plane of paper
PHXII04:MOVING CHARGES AND MAGNETISM

362710 A long wire A carries a current of 10\(amp\). Another long wire \(B\), Which is parallel to A and separated by 0.1\(m\) from \(A\), carries a current of 5\(amp\), in the opposite direction to that in \(A\). What is the magnitude and nature of the force experienced per unit length of \(B\)?

1 Repulsive force of \({10^{ - 4}}\;N/m\)
2 Attractive force of \({10^{ - 4}}\;N/m\)
3 Repulsive force of \(2\pi \times {10^{ - 5}}\;N/m\)
4 Attractive force of \(2\pi \times {10^{ - 5}}\;N/m\)