MCQ
Which of the following statement is not correct about two parallel conductors carrying equal currents in the same direction?
  • A
    Each of the conductors will experience a force
  • The two conductors will repel each other
  • C
    There are concentric lines of force around each conductor
  • D
    Each of the conductors will move if not prevented from doing so

Answer

Correct option: B.
The two conductors will repel each other

When two conductors carrying equal current both the conductor experiences a force which is perpendicular to the wire and are equal.
Since both these forces are equal and towards each other, both the current carrying wire will be repelling each other.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A convex lens of focal length f produces an image $\frac{1}{ n }$ times than that of the size of the object. The distance of the object from the lens is
Find the charge on the capacitor $C$ in the following circuit ............ $\mu C$
A hollow insulated conducting sphere is given a positive charge of $10\,\mu \,C$. ........$\mu \,C{m^{ - 2}}$ will be the electric field at the centre of the sphere if its radius is $2$ meters
In a potentiometer arrangement, a cell of $emf$ $1.25\; V$ gives a balance point at $35.0\; cm$ length of the wire. If the cell is replaced by another cell and the balance point shifts to $63.0\; cm ,$ what is the $emf$ of the second cell in $V$?
In following diagram there is a straight wire carrying a current $I.$ Consider a circular path with radius $(R)$ near it. It $\vec B_T$ is the tangential component of magnetic field then find the value of integral $\int {{{\vec B}_T}.\overrightarrow {dl} } $
A metallic ring of radius $a$ and resistance $R$ is held fixed with its axis along a spatially uniform magnetic field whose magnitude is $B_0 \sin \omega t$. Gravity is neglected. Then,
A convex lens, a glass slab, a glass prism and a solid sphere all are made of the same glass, the dispersive power will be
Voltage in the secondary coil of a transformer does not depend upon.
The frequency of radio waves corresponding to a wavelength of $10m$ is:
A loop is moulded by a constant length current carrying wire and placed in external magnetic field, then torque acts on it does not depends upon

$(a)$ Shape of loop

$(b)$ Area of loop.

$(c)$ Current in loop

$(d)$ External magnetic field.