04. Force and Torque on Current Carrying Conductor
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Moving Charges & Magnetism

153750 For a long current carrying solenoid having inside magnetic field is $0.6 \mathrm{~T}$. Then find the magnetic energy per unit volume is

1 $1.43 \times 10^{5} \mathrm{~J} / \mathrm{m}^{3}$
2 $5.23 \times \overline{104 \mathrm{~J}} / \mathrm{m}^{3}$
3 $2.86 \times 104 \mathrm{~J} / \mathrm{m}^{3}$
4 Zero
Moving Charges & Magnetism

153752 ABCD is a rectangular loop made of uniform wire. If \(A D=B C=2 \mathrm{~cm}\), what is the magnetic force per unit length acting on wire $D C$ due to wire $A B$ if ammeter reads $20 \mathrm{~A}$. (The length of $A B$ and $D C$ are large in comparison with other two sides)

1 $10^{-1} \mathrm{Nm}^{-1}$
2 $10^{-2} \mathrm{Nm}^{-1}$
3 $10^{-3} \mathrm{Nm}^{-1}$
4 $10^{-4} \mathrm{Nm}^{-1}$
Moving Charges & Magnetism

153753 The horizontal component of the earth's magnetic field at a certain place is $3.0 \times 10^{-5} \mathrm{~T}$ and the direction of the field is from the geographic south to the geographic north. A very long straight conductor is carrying a steady current of $2 \mathrm{~A}$. What is the force per unit length on it when it is placed on a horizontal table and the direction of the current is east to west?

1 $3 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
2 $9 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
3 $6 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
4 $2 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
Moving Charges & Magnetism

153751
In above figure electron enters into magnetic field $B$. It deflects in the direction

1 +ve $\mathrm{X}$ direction
2 -ve X direction
3 +ve Y direction
4 -ve Y direction
Moving Charges & Magnetism

153750 For a long current carrying solenoid having inside magnetic field is $0.6 \mathrm{~T}$. Then find the magnetic energy per unit volume is

1 $1.43 \times 10^{5} \mathrm{~J} / \mathrm{m}^{3}$
2 $5.23 \times \overline{104 \mathrm{~J}} / \mathrm{m}^{3}$
3 $2.86 \times 104 \mathrm{~J} / \mathrm{m}^{3}$
4 Zero
Moving Charges & Magnetism

153752 ABCD is a rectangular loop made of uniform wire. If \(A D=B C=2 \mathrm{~cm}\), what is the magnetic force per unit length acting on wire $D C$ due to wire $A B$ if ammeter reads $20 \mathrm{~A}$. (The length of $A B$ and $D C$ are large in comparison with other two sides)

1 $10^{-1} \mathrm{Nm}^{-1}$
2 $10^{-2} \mathrm{Nm}^{-1}$
3 $10^{-3} \mathrm{Nm}^{-1}$
4 $10^{-4} \mathrm{Nm}^{-1}$
Moving Charges & Magnetism

153753 The horizontal component of the earth's magnetic field at a certain place is $3.0 \times 10^{-5} \mathrm{~T}$ and the direction of the field is from the geographic south to the geographic north. A very long straight conductor is carrying a steady current of $2 \mathrm{~A}$. What is the force per unit length on it when it is placed on a horizontal table and the direction of the current is east to west?

1 $3 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
2 $9 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
3 $6 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
4 $2 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
Moving Charges & Magnetism

153751
In above figure electron enters into magnetic field $B$. It deflects in the direction

1 +ve $\mathrm{X}$ direction
2 -ve X direction
3 +ve Y direction
4 -ve Y direction
Moving Charges & Magnetism

153750 For a long current carrying solenoid having inside magnetic field is $0.6 \mathrm{~T}$. Then find the magnetic energy per unit volume is

1 $1.43 \times 10^{5} \mathrm{~J} / \mathrm{m}^{3}$
2 $5.23 \times \overline{104 \mathrm{~J}} / \mathrm{m}^{3}$
3 $2.86 \times 104 \mathrm{~J} / \mathrm{m}^{3}$
4 Zero
Moving Charges & Magnetism

153752 ABCD is a rectangular loop made of uniform wire. If \(A D=B C=2 \mathrm{~cm}\), what is the magnetic force per unit length acting on wire $D C$ due to wire $A B$ if ammeter reads $20 \mathrm{~A}$. (The length of $A B$ and $D C$ are large in comparison with other two sides)

1 $10^{-1} \mathrm{Nm}^{-1}$
2 $10^{-2} \mathrm{Nm}^{-1}$
3 $10^{-3} \mathrm{Nm}^{-1}$
4 $10^{-4} \mathrm{Nm}^{-1}$
Moving Charges & Magnetism

153753 The horizontal component of the earth's magnetic field at a certain place is $3.0 \times 10^{-5} \mathrm{~T}$ and the direction of the field is from the geographic south to the geographic north. A very long straight conductor is carrying a steady current of $2 \mathrm{~A}$. What is the force per unit length on it when it is placed on a horizontal table and the direction of the current is east to west?

1 $3 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
2 $9 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
3 $6 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
4 $2 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
Moving Charges & Magnetism

153751
In above figure electron enters into magnetic field $B$. It deflects in the direction

1 +ve $\mathrm{X}$ direction
2 -ve X direction
3 +ve Y direction
4 -ve Y direction
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Moving Charges & Magnetism

153750 For a long current carrying solenoid having inside magnetic field is $0.6 \mathrm{~T}$. Then find the magnetic energy per unit volume is

1 $1.43 \times 10^{5} \mathrm{~J} / \mathrm{m}^{3}$
2 $5.23 \times \overline{104 \mathrm{~J}} / \mathrm{m}^{3}$
3 $2.86 \times 104 \mathrm{~J} / \mathrm{m}^{3}$
4 Zero
Moving Charges & Magnetism

153752 ABCD is a rectangular loop made of uniform wire. If \(A D=B C=2 \mathrm{~cm}\), what is the magnetic force per unit length acting on wire $D C$ due to wire $A B$ if ammeter reads $20 \mathrm{~A}$. (The length of $A B$ and $D C$ are large in comparison with other two sides)

1 $10^{-1} \mathrm{Nm}^{-1}$
2 $10^{-2} \mathrm{Nm}^{-1}$
3 $10^{-3} \mathrm{Nm}^{-1}$
4 $10^{-4} \mathrm{Nm}^{-1}$
Moving Charges & Magnetism

153753 The horizontal component of the earth's magnetic field at a certain place is $3.0 \times 10^{-5} \mathrm{~T}$ and the direction of the field is from the geographic south to the geographic north. A very long straight conductor is carrying a steady current of $2 \mathrm{~A}$. What is the force per unit length on it when it is placed on a horizontal table and the direction of the current is east to west?

1 $3 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
2 $9 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
3 $6 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
4 $2 \times 10^{-5} \mathrm{~N} / \mathrm{m}$
Moving Charges & Magnetism

153751
In above figure electron enters into magnetic field $B$. It deflects in the direction

1 +ve $\mathrm{X}$ direction
2 -ve X direction
3 +ve Y direction
4 -ve Y direction