Two point charges a and b, whose magnitudes are same are position… - Vidyadip

Question

Two point charges $a$ and $b$, whose magnitudes are same are positioned at a certain distance from each other with a at origin. Graph is drawn between electric field strength at points between $a$ and $b$ and distance $x$ from a $E$ is taken positive if it is along the line joining from to be. From the graph, it can be decided that

✓

Answer

From graph it can be observed that field is always in the $+ve$ direction. This means a must $be +ve$ and $b$ must be $-ve.$

If both are positive, then field must become zero and change it's direction afterward.

If both are negative, then field must be in$-ve$ direction when it is close to $a.$

$a-ve$ and $b +ve$ means field must always $be-ve.$

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

When vector $\overrightarrow{ A }=2 \hat{ i }+3 \hat{ j }+2 \hat{ k }$ is subtracted from vector $\vec{B}$, it gives a vector equal to $2 \hat{j}$. Then the magnitude of vector $\vec{B}$ will be:

In a Young's double slit experiment, the intensity of light at each slit is $I_0$. Interference pattern is observed along a direction parallel to the line $S_1 S_2$ on screen $S$. The minimum, maximum and the intensity averaged over the entire screen are respectively.

The acceleration of system of two bodies over the wedge as shown in the figure is ....... $m/sec^2$

$A$ ray of light is incident normally on the first refracting face of the prism of refracting angle $A$.The ray oflight comes out at grazing emergence.If one half of the prism (shaded position) is knocked off,the same ray will

A missile is fired for maximum range at your town from a place $100\, km$ away from you. If the missile is first detected at its half way point, how much warning time will you have ? (Take $g = 10\, m/s ^2$) the maximum height of the missile is

Three concurrent forces of the same magnitude are in equilibrium. What is the angle between the forces Also name the triangle formed by the forces as sides

Two equal charges $q$ are placed at a distance of $2a$ and a third charge $ - 2q$ is placed at the midpoint. The potential energy of the system is

In hydrogen atom which quantity is integral multiple of $\frac{h}{{2\pi }}$

A double convex lens has power $P$ and same radii of curvature $R$ of both the surfaces. The radius of curvature of a surface of a plano-convex lens made of the same material with power $1.5P$ is ......$R$

The amplitude of a particle executing $SHM$ is $3\,cm$. The displacement at which its kinetic energy will be $25 \%$ more than the potential energy is: $.............cm$.