MCQ
When there is an electric current through a conducting wire along its length, then an electric field must exist
  • A
     Outside the wire but normal to it
  • B
     Outside the wire but parallel to it
  •  Inside the wire but parallel to it
  • D
    Inside the wire but normal to it

Answer

Correct option: C.
 Inside the wire but parallel to it
 Inside the wire but parallel to it

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

When the angle of incidence on a material is $60^o ,$  the reflected light is completely polarized. The velocity of the refracted ray inside the material is (in $m{s^{ - 1}}$)
We can reduce eddy currents in the core of transformer
A ray of light is incident at the glass–water interface at an angle i, it emerges finally parallel to the surface of water, then the value of $\mu_{ g }$ would be
Three identical dipoles are arranged as shown below. What will be the net electric field at $P$ $\left( {k = \frac{1}{{4\pi {\varepsilon _0}}}} \right)$
The atomic number of silicon is $14$. Its ground state electron configuration is
To get an output $Y=1$ from the circuit above, the input must be:
There is some liquid in a closed bottle. The amount of liquid remains constant as time passes. The vapour in the remaining part:
A problem of practical interest is to make a beam of electrons turn at $90^o$ corner. This can be done with the electric field present between the parallel plates as shown in the figure. An electron with kinetic energy $8.0 × 10^{-17}\ J$ enters through a small hole in the bottom plate. The strength of electric field that is needed if the electron is to emerge from an exit hole $1.0\ cm$ away from the entrance hole, traveling at right angles to its original direction is $y × 10^5\ N/C$ . The value of $y$ is
Which radiation in sunlight, causes heating effect
Considering a group of positive charges, which of the following statements is correct?