Click to Chat

0120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

• Complete Physics Course - Class 11
• OFFERED PRICE: R 2,800
• View Details
Get extra R 700 off
USE CODE: SSPD25

```				   A ball of mass 2kg, charge 1×10-6 C is dropped from top of a high tower . In space electric field exists in horizontal direction away from the tower whoch vareis as E=(5-2x)×106 V/m. Find the maximum horizontal distance ball can go from the tower and displacement of ball at this instant from the point of projection?
```

7 years ago

Share

```										hi ,
look the figure ,below . it shows only how the horizonta motion occurs
dv/dt = (5-2x)×106   ( 1×10-6   )
=(5-2x)
dx/dt = v
dv/dx = (5-2x)/v
v dv = (5-2x) dx
v^2/ 2]  from 0 to v =  5x - x^2 ]  from o to x
v^2/ 2  =  5x - x^2
for v =0 ,
5x - x^2 = 0
x= 0,  5
so ball will move back at x= 5 , this will be max. horizontal distance
displacement of ball at this instant from the point of projection ,
dx/ dt = v = √ 10x -  2 x^2
from here we can get time when it reaches  x= 5 ,
in this duration vertical displacement =  1/2 g t ^2
total  displacement  =  √ ( horiz. displacemen ) ^2 + ( vertical displacement  ) ^2

```
7 years ago

# Other Related Questions on Electrostatics

A body is giving 10^9 electrons in one second to another body. What time will it take to give 1 coulomb of charge ?

1ev=1.6e-19 that means 0.625e19 gives 1c charge and according to given question in 1sec e10 electrons are ejected which implies ot takes .625e10 sec to give one cloumb of charge

 2017 years ago
is it possible to create magnetic field without electric field?

@ krishna there are 2 way of creating an electric field , – introduce an electrically charged particle , or introduce a time varying magnetic field . however , there are no magnetically...

 Umakant biswal one month ago
what is electrification?

@ mohit rubbing of one part of body with other part is known as electrification by friction . or simply u can say charging of a body by rubbing witone anathor. example – when we rub our one ...

 Umakant biswal one month ago
WHAT S FRESENEL DIFFRACTION ?WHAT IS THE ANOTHER NAME ?

THE DIFFRACTION IN WHICH THE SOURCE AND OBSTACLE AND THE SCREEN ARE CLOSE TO THE EACH OTHER IS CALLED “FRESNEL DIFFRACTION “.IT IS ALSO CALLED NEAR – FIELD DIFFRACTION.

 SAI SARDAR one year ago

dear kumar........... Fraunhofer diffraction is the special case where the incoming light is assumed to be parallel and the image plane is assumed to be at a very large distance compared to ...

 mohan 9 months ago

hellow kumar Fresnel Diffraction. Fraunhofer diffraction is the special case where the incoming light is assumed to be parallel and the image plane is assumed to be at a very large distance...

 raj 9 months ago
In a horizontal circular motion is mg taken into consideration?

Well , in horizontal motion most of the times force mg is balanced by normal reaction. This normal reaction is mostly perpendicular to centripetal force so it doesnt play any role. But if...

 Manas Shukla 11 days ago

Yes it is taken into consideration. All the forces acting on the body are taken into consideration when solving any type of problem unless stated otherwise.

 Manas Shukla 14 days ago

So do you mean that mg is always taken into consideration? Both in vertical and horizontal circular motions???

 Arin Som 14 days ago
the armature of a DC motor has 20Ω resistance .it draws a current of 1.5 A when run by a 220 V DC suooly.the value of back emf induced in it ,is_____

Dc Motor would take voltage from source to get enrgised. Hence after kvl the eqn. we would get is: Ea = 220 – IR => 220 – 1.5*20 = > 220 – 30 = 190 Volts.

 2017 years ago
View all Questions »

• Complete Physics Course - Class 12
• OFFERED PRICE: R 2,600
• View Details
Get extra R 650 off
USE CODE: SSPD25

• Complete Physics Course - Class 11
• OFFERED PRICE: R 2,800
• View Details

Get extra R 700 off
USE CODE: SSPD25

More Questions On Electrostatics