00. Biot-Savart's Law and Magnetic Field, Lorentz Force
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NEET DIGITAL LIBRARY
Moving Charges & Magnetism

153253 A long straight wire carries a current 15 A. Calculate the magnetising field $\mathrm{H}$ at a point at distance $0.105 \mathrm{~m}$ from the axis of wire

1 $0.227 \mathrm{~A} / \mathrm{m}$
2 $2.27 \mathrm{~A} / \mathrm{m}$
3 $22.7 \mathrm{~A} / \mathrm{m}$
4 $22.7 \quad$ A-m
CG PET- 2013
Moving Charges & Magnetism

153254 A straight wire of diameter $0.5 \mathrm{~mm}$ carrying a current of $1 \mathrm{~A}$ is replaced by another wire of 1 $\mathrm{mm}$ diameter carrying the same current. The strength of magnetic field far away is

1 twice the earlier value
2 one- half of the earlier value
3 one- quarter of the earlier value
4 no change
CG PET- 2010
Moving Charges & Magnetism

153255 A and $B$ are two concentric circular conductors of centre $O$ and carrying currents $I_{1}$ and $I_{2}$ as shown in the figure. The ratio of their radii is $1: 2$ and ratio of the flux densities at $O$ due to $A$ and $B$ is $1: 3$. The value of $I_{1} / I_{2}$ will be

1 $\frac{1}{6}$
2 $\frac{1}{4}$
3 $\frac{1}{2}$
4 $\frac{1}{3}$
CG PET- 2007
Moving Charges & Magnetism

153258 Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is

1 twice the magnetic field produced due to each of the wire
2 half of the magnetic field produced due to each of the wires
3 square of the magnetic field produced due to each of the wires
4 zero
CG PET- 2004
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Moving Charges & Magnetism

153253 A long straight wire carries a current 15 A. Calculate the magnetising field $\mathrm{H}$ at a point at distance $0.105 \mathrm{~m}$ from the axis of wire

1 $0.227 \mathrm{~A} / \mathrm{m}$
2 $2.27 \mathrm{~A} / \mathrm{m}$
3 $22.7 \mathrm{~A} / \mathrm{m}$
4 $22.7 \quad$ A-m
CG PET- 2013
Moving Charges & Magnetism

153254 A straight wire of diameter $0.5 \mathrm{~mm}$ carrying a current of $1 \mathrm{~A}$ is replaced by another wire of 1 $\mathrm{mm}$ diameter carrying the same current. The strength of magnetic field far away is

1 twice the earlier value
2 one- half of the earlier value
3 one- quarter of the earlier value
4 no change
CG PET- 2010
Moving Charges & Magnetism

153255 A and $B$ are two concentric circular conductors of centre $O$ and carrying currents $I_{1}$ and $I_{2}$ as shown in the figure. The ratio of their radii is $1: 2$ and ratio of the flux densities at $O$ due to $A$ and $B$ is $1: 3$. The value of $I_{1} / I_{2}$ will be

1 $\frac{1}{6}$
2 $\frac{1}{4}$
3 $\frac{1}{2}$
4 $\frac{1}{3}$
CG PET- 2007
Moving Charges & Magnetism

153258 Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is

1 twice the magnetic field produced due to each of the wire
2 half of the magnetic field produced due to each of the wires
3 square of the magnetic field produced due to each of the wires
4 zero
CG PET- 2004
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Moving Charges & Magnetism

153253 A long straight wire carries a current 15 A. Calculate the magnetising field $\mathrm{H}$ at a point at distance $0.105 \mathrm{~m}$ from the axis of wire

1 $0.227 \mathrm{~A} / \mathrm{m}$
2 $2.27 \mathrm{~A} / \mathrm{m}$
3 $22.7 \mathrm{~A} / \mathrm{m}$
4 $22.7 \quad$ A-m
CG PET- 2013
Moving Charges & Magnetism

153254 A straight wire of diameter $0.5 \mathrm{~mm}$ carrying a current of $1 \mathrm{~A}$ is replaced by another wire of 1 $\mathrm{mm}$ diameter carrying the same current. The strength of magnetic field far away is

1 twice the earlier value
2 one- half of the earlier value
3 one- quarter of the earlier value
4 no change
CG PET- 2010
Moving Charges & Magnetism

153255 A and $B$ are two concentric circular conductors of centre $O$ and carrying currents $I_{1}$ and $I_{2}$ as shown in the figure. The ratio of their radii is $1: 2$ and ratio of the flux densities at $O$ due to $A$ and $B$ is $1: 3$. The value of $I_{1} / I_{2}$ will be

1 $\frac{1}{6}$
2 $\frac{1}{4}$
3 $\frac{1}{2}$
4 $\frac{1}{3}$
CG PET- 2007
Moving Charges & Magnetism

153258 Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is

1 twice the magnetic field produced due to each of the wire
2 half of the magnetic field produced due to each of the wires
3 square of the magnetic field produced due to each of the wires
4 zero
CG PET- 2004
NEET DIGITAL LIBRARY
Moving Charges & Magnetism

153253 A long straight wire carries a current 15 A. Calculate the magnetising field $\mathrm{H}$ at a point at distance $0.105 \mathrm{~m}$ from the axis of wire

1 $0.227 \mathrm{~A} / \mathrm{m}$
2 $2.27 \mathrm{~A} / \mathrm{m}$
3 $22.7 \mathrm{~A} / \mathrm{m}$
4 $22.7 \quad$ A-m
CG PET- 2013
Moving Charges & Magnetism

153254 A straight wire of diameter $0.5 \mathrm{~mm}$ carrying a current of $1 \mathrm{~A}$ is replaced by another wire of 1 $\mathrm{mm}$ diameter carrying the same current. The strength of magnetic field far away is

1 twice the earlier value
2 one- half of the earlier value
3 one- quarter of the earlier value
4 no change
CG PET- 2010
Moving Charges & Magnetism

153255 A and $B$ are two concentric circular conductors of centre $O$ and carrying currents $I_{1}$ and $I_{2}$ as shown in the figure. The ratio of their radii is $1: 2$ and ratio of the flux densities at $O$ due to $A$ and $B$ is $1: 3$. The value of $I_{1} / I_{2}$ will be

1 $\frac{1}{6}$
2 $\frac{1}{4}$
3 $\frac{1}{2}$
4 $\frac{1}{3}$
CG PET- 2007
Moving Charges & Magnetism

153258 Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is

1 twice the magnetic field produced due to each of the wire
2 half of the magnetic field produced due to each of the wires
3 square of the magnetic field produced due to each of the wires
4 zero
CG PET- 2004
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