Ask a Doubt
Request a call back

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

CBSE Class 12-science Answered

What is the potential at a point 6 × 10-15 m away from a proton? What will be the potential energy of a system, if another proton is brought to a distance 2 × 10-15 m from it?
Asked by Topperlearning User | 22 Apr, 2015, 10:06: AM
answered-by-expert Expert Answer

Potential at a point 6 × 10-15 m away from a proton is given as,

Potential,begin mathsize 11px style straight v equals Kq over straight r end style

               begin mathsize 11px style equals fraction numerator 9 space cross times space 10 to the power of 9 space cross times space 1.6 space cross times space 10 to the power of negative 19 end exponent over denominator 6 space cross times space 10 to the power of negative 15 end exponent end fraction space equals space 2.4 space cross times space 10 to the power of 5 space straight V end style

Potential at a distance 2 × 10-15 m from it is given as,

Potential energy,

begin mathsize 11px style straight U space equals space straight K fraction numerator straight q subscript 1 straight q subscript 2 over denominator straight r end fraction end style

   begin mathsize 11px style equals space fraction numerator 9 space cross times space 10 to the power of 9 space cross times space left parenthesis 1.6 space cross times space 10 to the power of negative 19 end exponent right parenthesis squared over denominator 2 space cross times space 10 to the power of negative 15 end exponent end fraction equals space 1.152 space cross times space 10 to the power of negative 13 space end exponent straight J end style

Answered by | 22 Apr, 2015, 12:06: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
solve option e
question image
Asked by dasrituparna1999 | 13 Apr, 2024, 06:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
  A particle with charge q and mass m is released just outside the centre of a uniformly charged square plate of side a and potential V.find the speed in which the particle files off away from the plate
Asked by sankaraganapathy007 | 09 Sep, 2023, 10:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
the work done is moving charge of 2c across two point having a potential difference of 12volt
Asked by tahseenaamir07 | 25 Jun, 2022, 01:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Two charges 2microcoulmb and-2microcoulmb are placed at A and8.5 apart depict equipotential surface of the system
Asked by sindhusoman87 | 15 Jul, 2020, 08:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
An alpha particle is accelerated through a potential difference of 2000v what will be the increase in energy in electron volt 
Asked by Shankaramurthy064 | 13 May, 2020, 08:47: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
If one of the two electrons of a H2 molecule is removed, we get a hydrogen molecular ion Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.. In the ground state of an Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., the two protons are separated by roughly 1.5Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '., and the electron is roughly 1Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '. from each proton. Determine the potential energy of the system. Specify your choice of the zero of potential energy.
Asked by Topperlearning User | 22 Apr, 2015, 07:50: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
The plates of a parallel plate capacitor have an area of 90 cm2 each and are separated by 2.5 mm The capacitor is charged by connecting it to a 400 V supply How much electrostatic energy is stored by the capacitor? View this energy as stored in the electrostatic field between the plates, and obtain the energy per unit volume u. Hence arrive at a relation between u and the magnitude of electric field E between the plates.
Asked by Topperlearning User | 22 Apr, 2015, 09:59: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
A 4 μF capacitor is charged by a 200 V supply. It is then disconnected from the supply and is connected to another uncharged 2μF capacitor. How much electrostatic energy of the first capacitor is lost in the heat and electromagnetic radiation?
Asked by Topperlearning User | 22 Apr, 2015, 08:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Write an expression for the electrostatic potential energy in terms of the electric field.
Asked by Topperlearning User | 23 Apr, 2015, 11:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
How much work is required to be done to separate the charges of a dipole till infinity with Q ± 7μC and r = 0.18 m?
Asked by Topperlearning User | 24 Apr, 2015, 02:08: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×