Force between Current Carrying Wires
PHXII04:MOVING CHARGES AND MAGNETISM

362719 The parallel wires are carrying electric currents of equal magnitude and in the same direction. They exert

1 A repulsive force on each other
2 A rotational torque on each other
3 An attractive force on each other
4 No force on each other
PHXII04:MOVING CHARGES AND MAGNETISM

362720 Two thin long conductors separated by a distance \(d\) carry currents \(I_{1}\) and \(I_{2}\) in the same direction. They exert a force \(F\) on each other. Now, the current in one of them is increased to two times and its direction is reversed. The distance is also increased to 3\(d\). The new value of force between them is:

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

362721 \(A\) and \(B\) are two conductors carrying a current \(i\) in the same direction. \(x\) and \(y\) are two electron beams moving in the same direction.
supporting img

1 There will be repulsion between \(A\) and \(B\) attraction between \(x\) and \(y\)
2 There will be attraction between \(A\) and \(B\), repulsion between \(x\) and \(y\)
3 There will be repulsion between \(A\) and \(B\) and also \(x\) and \(y\)
4 There will be attraction between \(A\) and \(B\) and also \(x\) and \(y\)
PHXII04:MOVING CHARGES AND MAGNETISM

362722 Two thin long parallel wires separated by a distance \(b\) are carrying a current \(i\) ampere each. The magnitude of the force per unit length exerted by one wire on the other, is

1 \(\dfrac{\mu_{0} i^{2}}{b^{2}}\)
2 \(\dfrac{\mu_{0} i}{2 \pi b^{2}}\)
3 \(\dfrac{\mu_{0} i}{2 \pi b}\)
4 \(\dfrac{\mu_{0} i^{2}}{2 \pi b}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362723 Assertion :
Like charges repel while opposite charges attract each other.
Reason :
If two beams of protons move parallel to each other in same direction then these beams repel each other.

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

362719 The parallel wires are carrying electric currents of equal magnitude and in the same direction. They exert

1 A repulsive force on each other
2 A rotational torque on each other
3 An attractive force on each other
4 No force on each other
PHXII04:MOVING CHARGES AND MAGNETISM

362720 Two thin long conductors separated by a distance \(d\) carry currents \(I_{1}\) and \(I_{2}\) in the same direction. They exert a force \(F\) on each other. Now, the current in one of them is increased to two times and its direction is reversed. The distance is also increased to 3\(d\). The new value of force between them is:

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

362721 \(A\) and \(B\) are two conductors carrying a current \(i\) in the same direction. \(x\) and \(y\) are two electron beams moving in the same direction.
supporting img

1 There will be repulsion between \(A\) and \(B\) attraction between \(x\) and \(y\)
2 There will be attraction between \(A\) and \(B\), repulsion between \(x\) and \(y\)
3 There will be repulsion between \(A\) and \(B\) and also \(x\) and \(y\)
4 There will be attraction between \(A\) and \(B\) and also \(x\) and \(y\)
PHXII04:MOVING CHARGES AND MAGNETISM

362722 Two thin long parallel wires separated by a distance \(b\) are carrying a current \(i\) ampere each. The magnitude of the force per unit length exerted by one wire on the other, is

1 \(\dfrac{\mu_{0} i^{2}}{b^{2}}\)
2 \(\dfrac{\mu_{0} i}{2 \pi b^{2}}\)
3 \(\dfrac{\mu_{0} i}{2 \pi b}\)
4 \(\dfrac{\mu_{0} i^{2}}{2 \pi b}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362723 Assertion :
Like charges repel while opposite charges attract each other.
Reason :
If two beams of protons move parallel to each other in same direction then these beams repel each other.

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

362719 The parallel wires are carrying electric currents of equal magnitude and in the same direction. They exert

1 A repulsive force on each other
2 A rotational torque on each other
3 An attractive force on each other
4 No force on each other
PHXII04:MOVING CHARGES AND MAGNETISM

362720 Two thin long conductors separated by a distance \(d\) carry currents \(I_{1}\) and \(I_{2}\) in the same direction. They exert a force \(F\) on each other. Now, the current in one of them is increased to two times and its direction is reversed. The distance is also increased to 3\(d\). The new value of force between them is:

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

362721 \(A\) and \(B\) are two conductors carrying a current \(i\) in the same direction. \(x\) and \(y\) are two electron beams moving in the same direction.
supporting img

1 There will be repulsion between \(A\) and \(B\) attraction between \(x\) and \(y\)
2 There will be attraction between \(A\) and \(B\), repulsion between \(x\) and \(y\)
3 There will be repulsion between \(A\) and \(B\) and also \(x\) and \(y\)
4 There will be attraction between \(A\) and \(B\) and also \(x\) and \(y\)
PHXII04:MOVING CHARGES AND MAGNETISM

362722 Two thin long parallel wires separated by a distance \(b\) are carrying a current \(i\) ampere each. The magnitude of the force per unit length exerted by one wire on the other, is

1 \(\dfrac{\mu_{0} i^{2}}{b^{2}}\)
2 \(\dfrac{\mu_{0} i}{2 \pi b^{2}}\)
3 \(\dfrac{\mu_{0} i}{2 \pi b}\)
4 \(\dfrac{\mu_{0} i^{2}}{2 \pi b}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362723 Assertion :
Like charges repel while opposite charges attract each other.
Reason :
If two beams of protons move parallel to each other in same direction then these beams repel each other.

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

362719 The parallel wires are carrying electric currents of equal magnitude and in the same direction. They exert

1 A repulsive force on each other
2 A rotational torque on each other
3 An attractive force on each other
4 No force on each other
PHXII04:MOVING CHARGES AND MAGNETISM

362720 Two thin long conductors separated by a distance \(d\) carry currents \(I_{1}\) and \(I_{2}\) in the same direction. They exert a force \(F\) on each other. Now, the current in one of them is increased to two times and its direction is reversed. The distance is also increased to 3\(d\). The new value of force between them is:

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

362721 \(A\) and \(B\) are two conductors carrying a current \(i\) in the same direction. \(x\) and \(y\) are two electron beams moving in the same direction.
supporting img

1 There will be repulsion between \(A\) and \(B\) attraction between \(x\) and \(y\)
2 There will be attraction between \(A\) and \(B\), repulsion between \(x\) and \(y\)
3 There will be repulsion between \(A\) and \(B\) and also \(x\) and \(y\)
4 There will be attraction between \(A\) and \(B\) and also \(x\) and \(y\)
PHXII04:MOVING CHARGES AND MAGNETISM

362722 Two thin long parallel wires separated by a distance \(b\) are carrying a current \(i\) ampere each. The magnitude of the force per unit length exerted by one wire on the other, is

1 \(\dfrac{\mu_{0} i^{2}}{b^{2}}\)
2 \(\dfrac{\mu_{0} i}{2 \pi b^{2}}\)
3 \(\dfrac{\mu_{0} i}{2 \pi b}\)
4 \(\dfrac{\mu_{0} i^{2}}{2 \pi b}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362723 Assertion :
Like charges repel while opposite charges attract each other.
Reason :
If two beams of protons move parallel to each other in same direction then these beams repel each other.

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

362719 The parallel wires are carrying electric currents of equal magnitude and in the same direction. They exert

1 A repulsive force on each other
2 A rotational torque on each other
3 An attractive force on each other
4 No force on each other
PHXII04:MOVING CHARGES AND MAGNETISM

362720 Two thin long conductors separated by a distance \(d\) carry currents \(I_{1}\) and \(I_{2}\) in the same direction. They exert a force \(F\) on each other. Now, the current in one of them is increased to two times and its direction is reversed. The distance is also increased to 3\(d\). The new value of force between them is:

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

362721 \(A\) and \(B\) are two conductors carrying a current \(i\) in the same direction. \(x\) and \(y\) are two electron beams moving in the same direction.
supporting img

1 There will be repulsion between \(A\) and \(B\) attraction between \(x\) and \(y\)
2 There will be attraction between \(A\) and \(B\), repulsion between \(x\) and \(y\)
3 There will be repulsion between \(A\) and \(B\) and also \(x\) and \(y\)
4 There will be attraction between \(A\) and \(B\) and also \(x\) and \(y\)
PHXII04:MOVING CHARGES AND MAGNETISM

362722 Two thin long parallel wires separated by a distance \(b\) are carrying a current \(i\) ampere each. The magnitude of the force per unit length exerted by one wire on the other, is

1 \(\dfrac{\mu_{0} i^{2}}{b^{2}}\)
2 \(\dfrac{\mu_{0} i}{2 \pi b^{2}}\)
3 \(\dfrac{\mu_{0} i}{2 \pi b}\)
4 \(\dfrac{\mu_{0} i^{2}}{2 \pi b}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362723 Assertion :
Like charges repel while opposite charges attract each other.
Reason :
If two beams of protons move parallel to each other in same direction then these beams repel each other.

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.