Force between Current Carrying Wires

In given figure, X and Y are two long straight parallel conductors each carrying a current of 2 A. The force on each conductor is F newtons. When the current in each is changed to 1 A and reversed in direction, the force on each is now

Which of the following expressions correctly describes for the force between two long parallel current carrying conductors:

The force acting per unit length on one conductor due to the other for two long parallel current-carrying wires is

Two straight parallel wires, both carrying $10$ amperes currents in the same direction attracts each other with a force of $1\times {10}^{-3} \mathrm{N}$. If both currents are doubled, the force of attraction will

Two infinite line-charges parallel to each other are moving with a constant velocity $v$ in the same direction as shown in the figure. The separation between two line-charges is $d$. The magnetic attraction balances the electric repulsion when, [$c=$speed of light in free space]

Where the neutral point lies?

The force between two parallel current-carrying conductors separated by a distance $x$ is $F$. If the current in each conductor is double and the  distance between them is halved, then the force between them becomes.

A straight uncharged conductor carries a current $i$. Assume that all the free electrons in the conductor move with the same drift velocity $v$. $A$ is a stationary observer while $B$ is moving with some uniform non-relativistic velocity. (Consider only finite changes)

Two long straight wires carrying the same current $I$ are separated by a distance $d$. The force per unit length between the currents in this situation is $F$. If the current magnitude in each wire is increased to $4I$ and simultaneously the distance between them is reduced to $\frac{d}{3}$, the magnitude of the force per unit length would become

Two wires carrying the same current in the same direction and placed $1 \mathrm{cm}$ apart will experience

A rectangular loop carrying a current $i$ is situated near a long straight wire such that the wire is parallel to one of the sides of the loop and is in the plane of the loop. If the steady current $i$ is established in the wire as shown in the figure, the loop will

A current of $10 A$ passes through two very long wires held parallel to each other and separated by a distance of $1 \mathrm{m}.$ The magnitude of force per unit length between them is [Use in $\frac{{\mu }_0}{4\pi }={10}^{-7}$S.I. unit]

Two thin long parallel wires separated by a distance $a$ are carrying a current  $I \mathrm{A}$each. The magnitude of the force per unit length will be

The diagram shows three long straight wires $P\mathit{,}Q$ and $R$ normal to the plane of the paper. Wires $P$ and $R$ carry currents directed into the plane of the paper, and wire $Q$ carries a current directed out of the paper. All three currents have the same magnitude. Which arrow best shows the direction of the resultant force on wire  $P$?

Three infinite length wire $P, Q$ and $R$ placed parallel to each other, net force on $10 \mathrm{cm}.$ length of wire $R$ (approximately) is:

$P,Q$ and $R$ long parallel straight wire in air, carrying currents as shown, the direction of resultant force on $Q$ is :-

Force between two unit pole strength placed at a distance of one metre is :-

Through two parallel wires $A$ and $B,10$ and $2$ ampere of currents are passed respectively in opposite direction. If the wire A is infinitely long and the length of the wire $B$ is $2 \mathrm{m},$ the force on the conductor $B\mathit{,}$ which is situated at $10 \mathrm{cm}$ distance from $A$ will be :-

Two parallel conductors $A$ and $B$ of equal lengths carry currents $I$ and $10 I$  respectively, in the same direction. Then :-