Question in diagram below:
Correct answer: C. 1.6 x 10^-4 A
- A. 1.6 x 10^-34 A
- B. 3.2 x 10^-34 A
- C. 1.6 x 10^-4 A
- D. 3.2 x 10^-4 A
Explanation
The current (I) caused by the motion of electrons in orbit is given by the formula I = frac{Q}{t}), where (Q) is the charge and (t) is the time taken to complete one orbit.The charge of an electron is (e approx 1.6 * 10^{-19}C). The current is then calculated as (I = frac{e}{t}). Substituting the given values, we get (I = frac{1.6 * 10^{-19} C}{1.0 * 10^{-15} s} = 1.6 * 10^{4} A)
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
In the diagram R1>R2>R3. Rank the three resistors according to the current in them, least to greatest.
An ordinary light bulb is marked "60W, 120V". Its resistance is:
When a current of 1A flows for 5 sec through the lamp. How much charge flows through the lamp
When 2Ω, 4Ω, and 6Ω resistors are connected in parallel, the equivalent resistance will be
A circuit that gives continuously varying potential is called
Internal resistance is the resistance offered by