Currents of a $10\, ampere$ and $2\, ampere$ are passed through two parallel thin wires $A$ and $B$ respectively in opposite directions. Wire $A$ is infinitely long and the length of the wire $B$ is $2\, m$. The force acting on the conductor $B$, which is situated at $10\, cm$ distance from $A$ will be
Currents of a $10\, ampere$ and $2\, ampere$ are passed through two parallel thin wires $A$ and $B$ respectively in opposite directions. Wire $A$ is infinitely long and the length of the wire $B$ is $2\, m$. The force acting on the conductor $B$, which is situated at $10\, cm$ distance from $A$ will be
- [AIEEE 2012]
- A
$8\times10^{-5}\, N$
- B
$5\times10^{-5}\, N$
- C
$8\pi \times10^{-7}\,N$
- D
$4\pi \times10^{-7}\,N$
Similar Questions
A straight wire of mass $200 \;g$ and length $1.5 \;m$ carrles a current of $2\; A$. It is suspended in mid-air by a uniform horizontal magnetic fleld $B$ (Figure). What is the magnitude of the magnetic fleld (in $T$)?
A straight wire of mass $200 \;g$ and length $1.5 \;m$ carrles a current of $2\; A$. It is suspended in mid-air by a uniform horizontal magnetic fleld $B$ (Figure). What is the magnitude of the magnetic fleld (in $T$)?
$AB$ and $CD$ are smooth parallel rails, separated by a distance $l$, and inclined to the horizontal at an angle $\theta$ . $A$ uniform magnetic field of magnitude $B$, directed vertically upwards, exists in the region. $EF$ is a conductor of mass $m$, carrying a current $i$. For $EF$ to be in equilibrium,
$AB$ and $CD$ are smooth parallel rails, separated by a distance $l$, and inclined to the horizontal at an angle $\theta$ . $A$ uniform magnetic field of magnitude $B$, directed vertically upwards, exists in the region. $EF$ is a conductor of mass $m$, carrying a current $i$. For $EF$ to be in equilibrium,
Two long straight parallel conductors separated by a distance of $0.5\,m$ carry currents of $5\,A$ and $8\,A$ in the same direction. The force per unit length experienced by each other is
Two long straight parallel conductors separated by a distance of $0.5\,m$ carry currents of $5\,A$ and $8\,A$ in the same direction. The force per unit length experienced by each other is
A square loop $ABCD$, carrying a current $i,$ is placed near and coplanar with a long straight conductor $XY$ carrying a current $I,$ the net force on the loop will be
A square loop $ABCD$, carrying a current $i,$ is placed near and coplanar with a long straight conductor $XY$ carrying a current $I,$ the net force on the loop will be
A conducting bar $PQ$ of length $l$ carrying current $I$ is suspended from a rigid support as shown in figure. A uniform magnetic field $B$ perpendicular to $PQ$ and directed away from the reader (inside the plane) is applied. If the mass of the bar is $M$ the tension in each string is
A conducting bar $PQ$ of length $l$ carrying current $I$ is suspended from a rigid support as shown in figure. A uniform magnetic field $B$ perpendicular to $PQ$ and directed away from the reader (inside the plane) is applied. If the mass of the bar is $M$ the tension in each string is