MCQ
Current is flowing in two parallel good conducting wires in the same direction. They will
- Aattract each other
- Brepel each other
- ✓not exert any force
- Dbe perpendicular to each other
✓
Answer
Correct option: C.
not exert any force
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
There are two square loops $A$ and $B$ . When $A$ moves towards $B$ , a current starts flowing in $B$ as shown in figure and current in $B$ stops when $A$ stops moving. From that we can infer that (Assume loop $B$ is at rest)
→In the box shown current $i$ enters at $H$ and leaves at $C$. If $i_{AB} = \frac{{\text{i}}}{6}$ , $i_{DC} = \frac{{\text{2i}}}{3}$ ,$i_{HA} = \frac{{\text{i}}}{2} , i_{GF} = \frac{{\text{i}}}{6} , i_{HE} = \frac{{\text{i}}}{6}$ , choose the branch in which current is zero
→If the red light is replaced by blue light illuminating the object in a microscope the resolving power of the microscope
de-Broglie wavelength of a body of mass $1 kg$ moving with velocity of $2000 m/s$ is
→Which of the following transitions in a hydrogen atom emits photon of the highest frequency
A simple pendulum with a bob of mass $m = 1\ kg$ , charge $q = 5\mu C$ and string length $l = 1\ m$ is given a horizontal velocity $u$ in a uniform electric field $E = 2 × 10^6\ V/m$ at its bottom most point $A$ , as shown in figure. It is given a speed $u$ such that the particle leave the circular path at its topmost point $C$ . Find the speed $u$ . (Take $g = 10\ m/s^2$ )
→Suppose a long rectangular loop of width $w$ is moving along the $x$-direction with its left arm in a magnetic field perpendicular to the plane of the loop (see figure). The resistance of the loop is zero and it has an inductance $L$. At time, $t=0$, its left arm passes the origin, $O$. If for $t \geq 0$, the current in the loop is $I$ and the distance of its left arm from the origin is $x$, then $I$ versus $x$ graph will be
→Assertion : A circular loop carrying current lies in XY plane with its center at origin having a magnetic flux in negative Z-axis.
Reason : Magnetic flux direction is independent of the direction of current in the conductor.
Reason : Magnetic flux direction is independent of the direction of current in the conductor.
In the given figure, when galvanometer shows no deflection, the current (in $A$) flowing through $5\,\Omega $ resistance will be
→The magnetic induction and magnetising field intensity in a sample of magnetic material are $B$ and $H$ respectively. The magnetic susceptibility of the material is
→