Question
In a region of constant potential:
✓
Answer
- The electric field is zero.
- There can be no charge inside the region.
or we can write $|\text{E}|=-\frac{\Delta\text{V}}{\Delta\text{r}}$
The electric field intensity E and electric potential V are related as E = 0 and for V = constant, $\frac{\text{dV}}{\text{dr}}=0$ this imply that electric field intensity E = 0.
If some charge is present inside the region then electric field cannot be zero at that region, for this V = constant is not valid.
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
I ampere current flows in a conducting wire for t seconds. If resistance of the wire is R ohms, then magnitude of produced heat in joules according to Joule's law is:
Two infinite long wires, each carrying current I, are lying along x - axis and y - axis, respectively. A charged particle, having a charge q and mass m, is projected with a velocity u along the straight line OP. The path of the particle is (neglect gravity) a:
Two insulated rings, one of slightly smaller diameter than the other are suspended along their common diameter as shown. Initially the planes of the rings are mutually perpendicular. When a steady current is set up in each of them
The value of $(\mu_{0}\in_{0})^{-1/2}$ is :
→In a semiconductor diode, the depletion region is removed when:
The concept of stationary orbits was proposed by(a) Neil Bohr(b) J.J. Thomson(c) Ruther ford(d) I. Newton
The electrostatic force between the metal plates of an isolated parallel capacitor C having a charge Q and area A is:
In the ideal double$-$slit experiment, when a glass$-$plate $($refractive index $1.5)$ of thickness $t$ is introduced in the path of one of the interfering beams $($wavelength $l),$ the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass$-$plate is
→In an electroplating experiment, m gm of silver is deposited when 4 ampere of current flows for 2 minute. The amount (in gm) of silver deposited by 6 ampere of current for 40 second will be(a) 4 m(b) m/2 (c) m/4 (d) 2 m
A current of 16 ampere flows through molten NaCl for 10 minute. The amount of metallic sodium that appears at the negative electrode would be(a) 0.23 gm(b) 1.15 gm(c) 2.3 gm(d) 11.5 gm