Place a ping pong ball in a water bath. drop one drop of water in the bath and describe the motion of the ball. is the wave motion transverse or longitudinal?

Solved

Show answers

Ответ:

adambbogard1589

14.06.2021

Physics

9.375 V/m

Explanation:

number of turns, N = 50

diameter of the coil, 2r = 15 cm

r = 7.5 cm = 0.075 m

magnetic field, B = 0.5 T

final magnetic field, B' = 0 T

time required, t = 0.1 s

flux, Ф = N B A Cos 0°

$\frac{d\phi}{dt}=NA\frac{dB}{dt}$

$\frac{d\phi}{dt}=50\times \pi r^{2}\times \frac{0-0.5}{0.1}$

$\frac{d\phi}{dt}=-250\times \pi r^{2}$

According to the Maxwell's equation

$\oint \overrightarrow{E}.d\overrightarrow{l}=-\frac{d\phi}{dt}$

$E\times 2\pi r = 250 \times \pi\times r^{2}$

E = 125 x r

E = 125 x 0.075

E = 9.375 V/m

Thus, the electric field is 9.375 V/m.

0,0(0 оценок)

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.

Ask your question

More tips

Answers on questions: Physics

Ask an AI advisor a question

I want advice