Download App

Electric Field and Potential — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsElectric Field and Potential2 Marks
Question
Consider two particles A and B having equal charges and placed at some distance. The particle A is slightly displaced towards B. Does the force on B increase as soon as the particle A is displaced? Does the force on the particle A increase as soon as it is displaced?
✓

Answer

Electrostatic force follows the inverse square law, $\text{F}=\frac{\text{k}}{\text{r}^2}.$ This means the the force on two particles carrying charges increases on decreasing the distance between them. Therefore, as particle A is slightly displaced towards B, the force on B as well as a A will increase.

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

More "2 Marks Questions" from Electric Field and Potential→Electric Field and Potential — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

There are two spheres of same radius and material at same temperature but one being solid while the other hollow. Which sphere will expand more if:
  1. They are heated to the same temperature.
  2. Same amount of heat is given to each of them?
→
A voltmeter consists of a $25\Omega$ coil connected in series with a $575\Omega$ resistor. The coil takes 10mA for full scale deflection. What maximum potential difference can be measured by this voltmeter?
→
Galileo, in his book Two New Sciences, stated the “for elevations which exceed or fall short of 45° by equal amounts, the ranges are equal.” Prove this statement.
→
Explain the terms: Young's modulus of elasticity and elastic fatigue.
→
The contact angle between water and glass is 0º. When water is poured in a glass to the maximum of its capacity, the water surface is convex upward. The angle of contact in such a situation is more than 90º. Explain.
→
An extended object is placed at a distance of 5.0cm from a convex lens of focal length 8.0cm.
  1. Draw the ray diagram (to the scale) to locate the image and from this, measure the distance of the image from the lens.
  2. Find the position of the image from the lens formula and see how close the drawing is to the correct result.
→
Equal masses of monoatomic and diatomic gases are supplied heat at the same temperature, pressure and volume. If same amount of heat is supplied to both the gases, which of them will undergo greater temperature rise?
→
At  t = 0, a particle is at rest at origin. Its acceleration is 2m/s2 for the first 3s and -2m/s2 for next 3s. Plot the acceleration versus time and velocity versus time graph.
→
A layer of ice of 20 cm thickness accumulates on the surface of the water of a pond. The temperature of air is $-10^{\circ} C$. The thickness of the ice layer is 0.1 cm, how long will the increase take? The conductivity of ice is $2.1 \text {Joule}~ \text {sec} ^{-1} m^{-1} k ^{-1}$, latent heat $3.36 \times 10^5 \text {Joule}~\text {kg} ^{-1}$ and density $10^3$.
→
A hollow sphere filled with water is used as the bob of a pendulum. Assume that the equation for simple pendulum is valid with the distance between the point of suspension and centre of mass of the bob acting as the effective length of the pendulum. If water slowly leaks out of the bob, how will the time period vary?
→