Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

NEET Class neet Answered

answer
question image
Asked by rekhapremkumar25 | 27 Aug, 2021, 07:06: AM
answered-by-expert Expert Answer
Distance dn of nth charge from origin is given as
 
dn = 2(n-1) m
 
Electric field E due to infinite number of charges is given as
 
begin mathsize 14px style E space equals space sum from n equals 1 to infinity of K space cross times q over 2 to the power of left parenthesis 2 n minus 2 right parenthesis end exponent space N divided by C end style
where K = 1/(4πεo ) is Coulomb's constant
 
Hence E = K q [ 1 + (1/4) + (1/16) +(1/64) ....................... to ∞ ]  N/C = K q Sn N/C
 
Bracketted term in above expression is geometric series with first term is 1 and common multipier is (1/4) .
 
Sn is sum of geometric series
 
Sn =  1 / [ 1 - (1/4) ] = 4/3   m-2
 
Hence electric field E = (4/3) K q
Answered by Thiyagarajan K | 27 Aug, 2021, 11:45: AM
Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
NEET neet - Physics
On the three corners of a square charge Q is kept and at the fourth corner charge q is kept. Find net electric force on charge q
Asked by zfaima704 | 19 Jul, 2024, 14:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
if 10 million electrons are removed from a neutral body then the charge on the body is
Asked by nandiniaishu99 | 26 Jun, 2024, 18:05: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
two infinite linear charges are placed parallel at 0.1m apart. if each jas charge density of 5 micro coulomb per meter then the force per unit length of one linear charge s in N/M
Asked by shreesinghjsp | 17 May, 2024, 21:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
two identical bodies in which charge are 40 micro coloumb and minus 20 micro coulomb they are some distance apart now they are touched and kept at the same distance the ratio of initial to final force between them is
Asked by rifabanu200715 | 02 Apr, 2024, 20:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
A ring of radius R is charged such that half of the ring has lamda1 linear charge density and other half has lamda 2 linear charge density. The net potential at the centre of the ring is
Asked by madhuraghunathan11 | 25 Mar, 2024, 08:26: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
two positive charges of 1 micro columb and 2 micro columb are placed 1 metre apart , the value of electric field at the mid point
question image
Asked by bhaktisheetal1234 | 18 Mar, 2024, 23:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
a charge q is located at the center of a cube the electric flux through any face is
Asked by sakshusharma631 | 22 Feb, 2024, 10:24: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
the ratio of electric force and gravitational force acting between two charges is in the order of
Asked by luckyankitg | 17 Dec, 2023, 18:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
a spere of radius 0.1cm is charged to 300v the force a ting per unit area is
Asked by slavanya19102005 | 18 Nov, 2023, 20:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
NEET neet - Physics
question no 2
question image
Asked by premprakash780014 | 17 Jan, 2023, 21:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Are You a Teacher or a Parent Seeking Customised Tests? Click here
×