The energy of an electron which accelerates through a potential difference of 1000 V is.
Correct answer: D. 1.6 x 10^-16 J
- A. 1.6 x 10^-22 J
- B. 1.6 x 10^-20 J
- C. 1.6 x 10^-19 J
- D. 1.6 x 10^-16 J
Explanation
The energy of an electron after accelerating through a potential difference of 1,000 volts (V) can be calculated using the formula: E=e×Vwhere ( E ) is the energy in joules (J), ( e ) is the charge of the electron ( 1.6×10-19 ) coulombs), and ( V ) is the potential difference in volts.So for a potential difference of 1,000 V, the energy ( E ) would be: E=1.6×10−19C×1000V E=1.6×10−16J
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electric Potential
Electric potential is the work done per unit positive charge in bringing it from infinity to a point, while potential difference compares energy change between two points. Work includes potential due to point charges, superposition of scalar potentials, equipotential surfaces, and the relation between electric field and potential.
Practise Electrostatics
831 free Electrostatics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electric Potential questions
Work done in moving a charge of 6C between two points is10J. What is the potential difference between two points?
When two protons are brought together_____________________?
The electric P.E of an electron in an orbit at a distance rn from the positive charge_____________?
Potential inside a hollow charged spherical conductor:
The dimension of electric potential is same as that of:
What is the change in kinetic energy of a proton when it is accelerated through a potential difference of 2MV?