![subject](/tpl/images/cats/fizika.png)
A circular current‑carrying loop lies so that the plane of the loop is perpendicular to a constant magnetic field of strength B. Suppose that the radius R of the loop could be made to increase with time t so that R = at, where a is a constant. What is the magnitude of the emf that would be generated around the loop as a function of t ?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 13:00
Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:30
Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 07:00
If you drive 12 miles north and 35 miles east, what is the direct distance between you and your starting point?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 10:10
Now that we have a feel for the state of the circuit in its steady state, let us obtain the expression for the current in the circuit as a function of time. note that we can use the loop rule (going around counterclockwise): e−vr−vl=0. note as well that vr=ir and vl=ldidt. using these equations, we can get, after some rearranging of the variables and making the subsitution x=er−i, dxx=−rldt. integrating both sides of this equation yields x=x0e−rt/l. use this last expression to obtain an expression for i(t). remember that x=er−i and that i0=i(0)=0. express your answer in terms of e, r, and l. you may or may not need all these variables. use the notation exp(x) for ex.
Answers: 1
You know the right answer?
A circular current‑carrying loop lies so that the plane of the loop is perpendicular to a constant m...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 12.02.2021 17:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 12.02.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:30
![question](/tpl/images/cats/istoriya.png)
History, 12.02.2021 17:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 12.02.2021 17:30
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 12.02.2021 17:30
![question](/tpl/images/cats/himiya.png)
Chemistry, 12.02.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:30
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:40
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:40
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:40
![question](/tpl/images/cats/biologiya.png)
Biology, 12.02.2021 17:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:40
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 12.02.2021 17:40
![question](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 17:40