Force between Current Carrying Wires
PHXII04:MOVING CHARGES AND MAGNETISM

362715 A current carrying rectangular loop \(P Q R S\) is made of uniform wire. The length \(PR = QS = 5\;cm\) and \(PQ = RS = 100\;cm\). If ammeter current reading changes from \(I\) to 2 \(I\), the ratio of magnetic forces per unit length on the wire \(P Q\) due to wire \(R S\) in the two cases respectively \(\left(f_{P Q}^{I}: f_{P Q}^{2 I}\right)\) is
supporting img

1 \(1: 2\)
2 \(1: 5\)
3 \(1: 3\)
4 \(1: 4\)
PHXII04:MOVING CHARGES AND MAGNETISM

362716 \(A\) and \(B\) are two infinitely long straight parallel conductors. \(C\) is another straight conductor of length 1\(m\) kept parallel to \(A\) and \(B\) as shown in the figure. Then, the force experienced by \(C\) is
supporting img

1 towards \(A\) equal to \(3.6 \times {10^{ - 5}}\;N\)
2 towards \(B\) equal to \(2.4 \times {10^{ - 5}}\;N\)
3 towards \(A\) equal to \(2.4 \times {10^{ - 5}}\;N\)
4 towards \(B\) equal to \(3.6 \times {10^{ - 5}}\;N\)
PHXII04:MOVING CHARGES AND MAGNETISM

362717 Two parallel conductors carrying unequal currents in the same direction...

1 Neither attract nor repel each other
2 Repel each other
3 Attract each other
4 Will have rotational motion
PHXII04:MOVING CHARGES AND MAGNETISM

362718 Two streams of protons move parallel to each other in the same direction. They will

1 Attract each other
2 Repel each other
3 Neither attract nor repel
4 Rotate
PHXII04:MOVING CHARGES AND MAGNETISM

362715 A current carrying rectangular loop \(P Q R S\) is made of uniform wire. The length \(PR = QS = 5\;cm\) and \(PQ = RS = 100\;cm\). If ammeter current reading changes from \(I\) to 2 \(I\), the ratio of magnetic forces per unit length on the wire \(P Q\) due to wire \(R S\) in the two cases respectively \(\left(f_{P Q}^{I}: f_{P Q}^{2 I}\right)\) is
supporting img

1 \(1: 2\)
2 \(1: 5\)
3 \(1: 3\)
4 \(1: 4\)
PHXII04:MOVING CHARGES AND MAGNETISM

362716 \(A\) and \(B\) are two infinitely long straight parallel conductors. \(C\) is another straight conductor of length 1\(m\) kept parallel to \(A\) and \(B\) as shown in the figure. Then, the force experienced by \(C\) is
supporting img

1 towards \(A\) equal to \(3.6 \times {10^{ - 5}}\;N\)
2 towards \(B\) equal to \(2.4 \times {10^{ - 5}}\;N\)
3 towards \(A\) equal to \(2.4 \times {10^{ - 5}}\;N\)
4 towards \(B\) equal to \(3.6 \times {10^{ - 5}}\;N\)
PHXII04:MOVING CHARGES AND MAGNETISM

362717 Two parallel conductors carrying unequal currents in the same direction...

1 Neither attract nor repel each other
2 Repel each other
3 Attract each other
4 Will have rotational motion
PHXII04:MOVING CHARGES AND MAGNETISM

362718 Two streams of protons move parallel to each other in the same direction. They will

1 Attract each other
2 Repel each other
3 Neither attract nor repel
4 Rotate
PHXII04:MOVING CHARGES AND MAGNETISM

362715 A current carrying rectangular loop \(P Q R S\) is made of uniform wire. The length \(PR = QS = 5\;cm\) and \(PQ = RS = 100\;cm\). If ammeter current reading changes from \(I\) to 2 \(I\), the ratio of magnetic forces per unit length on the wire \(P Q\) due to wire \(R S\) in the two cases respectively \(\left(f_{P Q}^{I}: f_{P Q}^{2 I}\right)\) is
supporting img

1 \(1: 2\)
2 \(1: 5\)
3 \(1: 3\)
4 \(1: 4\)
PHXII04:MOVING CHARGES AND MAGNETISM

362716 \(A\) and \(B\) are two infinitely long straight parallel conductors. \(C\) is another straight conductor of length 1\(m\) kept parallel to \(A\) and \(B\) as shown in the figure. Then, the force experienced by \(C\) is
supporting img

1 towards \(A\) equal to \(3.6 \times {10^{ - 5}}\;N\)
2 towards \(B\) equal to \(2.4 \times {10^{ - 5}}\;N\)
3 towards \(A\) equal to \(2.4 \times {10^{ - 5}}\;N\)
4 towards \(B\) equal to \(3.6 \times {10^{ - 5}}\;N\)
PHXII04:MOVING CHARGES AND MAGNETISM

362717 Two parallel conductors carrying unequal currents in the same direction...

1 Neither attract nor repel each other
2 Repel each other
3 Attract each other
4 Will have rotational motion
PHXII04:MOVING CHARGES AND MAGNETISM

362718 Two streams of protons move parallel to each other in the same direction. They will

1 Attract each other
2 Repel each other
3 Neither attract nor repel
4 Rotate
PHXII04:MOVING CHARGES AND MAGNETISM

362715 A current carrying rectangular loop \(P Q R S\) is made of uniform wire. The length \(PR = QS = 5\;cm\) and \(PQ = RS = 100\;cm\). If ammeter current reading changes from \(I\) to 2 \(I\), the ratio of magnetic forces per unit length on the wire \(P Q\) due to wire \(R S\) in the two cases respectively \(\left(f_{P Q}^{I}: f_{P Q}^{2 I}\right)\) is
supporting img

1 \(1: 2\)
2 \(1: 5\)
3 \(1: 3\)
4 \(1: 4\)
PHXII04:MOVING CHARGES AND MAGNETISM

362716 \(A\) and \(B\) are two infinitely long straight parallel conductors. \(C\) is another straight conductor of length 1\(m\) kept parallel to \(A\) and \(B\) as shown in the figure. Then, the force experienced by \(C\) is
supporting img

1 towards \(A\) equal to \(3.6 \times {10^{ - 5}}\;N\)
2 towards \(B\) equal to \(2.4 \times {10^{ - 5}}\;N\)
3 towards \(A\) equal to \(2.4 \times {10^{ - 5}}\;N\)
4 towards \(B\) equal to \(3.6 \times {10^{ - 5}}\;N\)
PHXII04:MOVING CHARGES AND MAGNETISM

362717 Two parallel conductors carrying unequal currents in the same direction...

1 Neither attract nor repel each other
2 Repel each other
3 Attract each other
4 Will have rotational motion
PHXII04:MOVING CHARGES AND MAGNETISM

362718 Two streams of protons move parallel to each other in the same direction. They will

1 Attract each other
2 Repel each other
3 Neither attract nor repel
4 Rotate
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