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PHXII04:MOVING CHARGES AND MAGNETISM

362656 A long straight wire, carrying current \(I\) is bent at its mid-point to form an angle of \(45^{\circ}\). Induction of magnetic field (in tesla) at point \(P\), distant \(R\) from point of bending is equal to
supporting img

1 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \pi R}\)
2 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \pi R}\)
3 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
4 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
AIIMS - 2018
PHXII04:MOVING CHARGES AND MAGNETISM

362657 A long straight wire in the horizontal plane carries a current of \(75\;A\) in north of south direction, magnitude and direction of field \(B\) at a point \(3\;m\) east of the wire is

1 \(4 \times {10^{ - 6}}\;T\), vertical up
2 \(5 \times {10^{ - 6}}\;T\), vertical down
3 \(5 \times {10^{ - 6}}\;T\), vertical up
4 \(4 \times {10^{ - 6}}\;T\), vertical down
MHTCET - 2021
PHXII04:MOVING CHARGES AND MAGNETISM

362658 An electron is moving at \({10^{6} {~m} / {s}}\) in a direction parallel to a current of \(5\,A\) flowing through an infinite long straight wire separated by a perpendicular distance of \(10\,cm\) in air. Magnetic force experienced by the electron
supporting img

1 \({1.6 \times 10^{-19} {~N}}\)
2 \({1.6 \times 10^{-20} N}\)
3 \({1.6 \times 10^{-18} {~N}}\)
4 \({1.6 \times 10^{-21} N}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362659 As shown in figure, two infinitely long, identical wires are bent by \(90^{\circ}\) and placed in such a way that the segments \(LP\) and \(QM\) are along \(x\)-axis, while segments \(PS\) and \(QN\) are parallel to \(y\)-axis. If \(OP = OQ = 5\;cm\), and the magnitude of the magnetic field at \(O\) is \({10^{ - 5}}\;T,\) and the two wires carry equal currents (see figure), the magnitude of current in each wire is
supporting img

1 \(1.7\,A\)
2 \(2.5\,A\)
3 \(5.2\,A\)
4 \(7.1\,A\)
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PHXII04:MOVING CHARGES AND MAGNETISM

362656 A long straight wire, carrying current \(I\) is bent at its mid-point to form an angle of \(45^{\circ}\). Induction of magnetic field (in tesla) at point \(P\), distant \(R\) from point of bending is equal to
supporting img

1 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \pi R}\)
2 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \pi R}\)
3 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
4 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
AIIMS - 2018
PHXII04:MOVING CHARGES AND MAGNETISM

362657 A long straight wire in the horizontal plane carries a current of \(75\;A\) in north of south direction, magnitude and direction of field \(B\) at a point \(3\;m\) east of the wire is

1 \(4 \times {10^{ - 6}}\;T\), vertical up
2 \(5 \times {10^{ - 6}}\;T\), vertical down
3 \(5 \times {10^{ - 6}}\;T\), vertical up
4 \(4 \times {10^{ - 6}}\;T\), vertical down
MHTCET - 2021
PHXII04:MOVING CHARGES AND MAGNETISM

362658 An electron is moving at \({10^{6} {~m} / {s}}\) in a direction parallel to a current of \(5\,A\) flowing through an infinite long straight wire separated by a perpendicular distance of \(10\,cm\) in air. Magnetic force experienced by the electron
supporting img

1 \({1.6 \times 10^{-19} {~N}}\)
2 \({1.6 \times 10^{-20} N}\)
3 \({1.6 \times 10^{-18} {~N}}\)
4 \({1.6 \times 10^{-21} N}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362659 As shown in figure, two infinitely long, identical wires are bent by \(90^{\circ}\) and placed in such a way that the segments \(LP\) and \(QM\) are along \(x\)-axis, while segments \(PS\) and \(QN\) are parallel to \(y\)-axis. If \(OP = OQ = 5\;cm\), and the magnitude of the magnetic field at \(O\) is \({10^{ - 5}}\;T,\) and the two wires carry equal currents (see figure), the magnitude of current in each wire is
supporting img

1 \(1.7\,A\)
2 \(2.5\,A\)
3 \(5.2\,A\)
4 \(7.1\,A\)
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PHXII04:MOVING CHARGES AND MAGNETISM

362656 A long straight wire, carrying current \(I\) is bent at its mid-point to form an angle of \(45^{\circ}\). Induction of magnetic field (in tesla) at point \(P\), distant \(R\) from point of bending is equal to
supporting img

1 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \pi R}\)
2 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \pi R}\)
3 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
4 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
AIIMS - 2018
PHXII04:MOVING CHARGES AND MAGNETISM

362657 A long straight wire in the horizontal plane carries a current of \(75\;A\) in north of south direction, magnitude and direction of field \(B\) at a point \(3\;m\) east of the wire is

1 \(4 \times {10^{ - 6}}\;T\), vertical up
2 \(5 \times {10^{ - 6}}\;T\), vertical down
3 \(5 \times {10^{ - 6}}\;T\), vertical up
4 \(4 \times {10^{ - 6}}\;T\), vertical down
MHTCET - 2021
PHXII04:MOVING CHARGES AND MAGNETISM

362658 An electron is moving at \({10^{6} {~m} / {s}}\) in a direction parallel to a current of \(5\,A\) flowing through an infinite long straight wire separated by a perpendicular distance of \(10\,cm\) in air. Magnetic force experienced by the electron
supporting img

1 \({1.6 \times 10^{-19} {~N}}\)
2 \({1.6 \times 10^{-20} N}\)
3 \({1.6 \times 10^{-18} {~N}}\)
4 \({1.6 \times 10^{-21} N}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362659 As shown in figure, two infinitely long, identical wires are bent by \(90^{\circ}\) and placed in such a way that the segments \(LP\) and \(QM\) are along \(x\)-axis, while segments \(PS\) and \(QN\) are parallel to \(y\)-axis. If \(OP = OQ = 5\;cm\), and the magnitude of the magnetic field at \(O\) is \({10^{ - 5}}\;T,\) and the two wires carry equal currents (see figure), the magnitude of current in each wire is
supporting img

1 \(1.7\,A\)
2 \(2.5\,A\)
3 \(5.2\,A\)
4 \(7.1\,A\)
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PHXII04:MOVING CHARGES AND MAGNETISM

362656 A long straight wire, carrying current \(I\) is bent at its mid-point to form an angle of \(45^{\circ}\). Induction of magnetic field (in tesla) at point \(P\), distant \(R\) from point of bending is equal to
supporting img

1 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \pi R}\)
2 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \pi R}\)
3 \(\dfrac{(\sqrt{2}-1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
4 \(\dfrac{(\sqrt{2}+1) \mu_{0} I}{4 \sqrt{2} \pi R}\)
AIIMS - 2018
PHXII04:MOVING CHARGES AND MAGNETISM

362657 A long straight wire in the horizontal plane carries a current of \(75\;A\) in north of south direction, magnitude and direction of field \(B\) at a point \(3\;m\) east of the wire is

1 \(4 \times {10^{ - 6}}\;T\), vertical up
2 \(5 \times {10^{ - 6}}\;T\), vertical down
3 \(5 \times {10^{ - 6}}\;T\), vertical up
4 \(4 \times {10^{ - 6}}\;T\), vertical down
MHTCET - 2021
PHXII04:MOVING CHARGES AND MAGNETISM

362658 An electron is moving at \({10^{6} {~m} / {s}}\) in a direction parallel to a current of \(5\,A\) flowing through an infinite long straight wire separated by a perpendicular distance of \(10\,cm\) in air. Magnetic force experienced by the electron
supporting img

1 \({1.6 \times 10^{-19} {~N}}\)
2 \({1.6 \times 10^{-20} N}\)
3 \({1.6 \times 10^{-18} {~N}}\)
4 \({1.6 \times 10^{-21} N}\)
PHXII04:MOVING CHARGES AND MAGNETISM

362659 As shown in figure, two infinitely long, identical wires are bent by \(90^{\circ}\) and placed in such a way that the segments \(LP\) and \(QM\) are along \(x\)-axis, while segments \(PS\) and \(QN\) are parallel to \(y\)-axis. If \(OP = OQ = 5\;cm\), and the magnitude of the magnetic field at \(O\) is \({10^{ - 5}}\;T,\) and the two wires carry equal currents (see figure), the magnitude of current in each wire is
supporting img

1 \(1.7\,A\)
2 \(2.5\,A\)
3 \(5.2\,A\)
4 \(7.1\,A\)
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