A particle carrying a charge of 3e, accelerates through a potential difference of 2V. The energy acquired by it is:
Correct answer: B. 9.6 x 10^-19 J
- A. 1.6 x 10^-19 J
- B. 9.6 x 10^-19 J
- C. 9.6 x 10^-18 J
- D. 1.6 x 10^-18 J
Explanation
Energy acquired = 3e x 2V = 6eV = 6 x 1.6 x 10-19 = 9.6 x 10-19
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
Practise Current Electricity
1,052 free Current Electricity 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 Current Electricity questions
Calculate the charge passing through the circuit if it's current it 10 Amp and the recorded time is 15 seconds.
Two copper conductors have equal lengths. The cross-sectional area of one conductor is four times that of the other. If the conductor with a smaller cross-sectional area has a resistance of 40 ohms, then the resistance of the other conductor will be?
There are three bulbs of 60W, 100W, and 200W. Which bulb has the thickest filament?
Ohm's law is applicable to _.
What is the relationship between Power, Current and voltage?
Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 0.25 ohms. If the same four wires are connected is series the effective resistance will be?