MCQ
The electric field intensity at a point in vacuum is equal to
  • A
    Zero
  • B
    Force a proton would experience there
  • C
    Force an electron would experience there
  • Force a unit positive charge would experience there

Answer

Correct option: D.
Force a unit positive charge would experience there
d
(d)

This is defination of electric field.

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 an unpolarized light of intensity, $I_0$ ​ is incident on a polarizing sheet, the intensity of light which does not get transmitted is
From a supply of identical capacitors rated $8 \mu F, 250 V,$ the minimum number of capacitors required to form a composite $16 \mu F, 1000 V$ capacitor is:
A parallel-plate capacitor consists of a fixed plate and a movable plate that is allowed to slide in the direction parallel to the plates. Let $x$ be the distance of overlap, as shown in the figure. The separation between the plates is fixed. Assume that the plates are electrically isolated, so that their charges $±Q$ are constant. Force on the movable plate is proportional to 
In the circuit given below, V(t) is the sinusoidal voltage source, voltage drop $V_{A B}(t)$ across the resistance R is
The linear portions of the characteristic curves of a triode valve give the following readings The plate resistance is.......$ohms$

${{V}_{g}}$(volt)

$0$

$- 2$

$- 4$

$- 6$

${{I}_{p}}(mA)$ for ${{V}_{p}}=150volts$

$ 15$

$12.5$

$10$

$7.5$

${{I}_{p}}(mA)$ for ${{V}_{p}}=120volts$

$10$

$7.5$

$5$

$2.5$

The charge distribution along the semi-circular arc is non-uniform . Charge per unit length $\lambda $ is given as $\lambda  = {\lambda _0}\sin \theta $ , with $\theta $ measured as shown in figure. $\lambda_0$ is a positive constant. The radius of arc is $R$ . The electric field at the center $P$ of semi-circular arc is $E_1$ . The value of $\frac{{{\lambda _0}}}{{{ \in _0}{E_1}R}}$ is
The graph shows how the magnification $m$ produced by a convex thin lens varies with image distance $v$. What was the focal length of the used
In a coil of resistance $100\ \Omega$ , a current is induced by changing the magnetic flux through it as shown in the figure. The magnitude of change in flux through the coil is......$Wb$
If narrow slit of width $2\, mm$ is illuminated by monochromatic light of wavelength $500\, nm$, then the distance between the first minima of both side on a screen at a distance of $1\, m$ is.......$mm$
In the given figure, the equivalent resistance between the points $A$ and $B$ is ............ $\Omega$