Physics 1425: General Physics I - Galileo and Einstein
Physics 1425: General Physics I - Galileo and Einstein
Physics 1425: General Physics I - Galileo and Einstein
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Magnetic Field In Charging Capacitor<br />
• For the total area<br />
d dQ<br />
0<br />
E dA I<br />
dt<br />
dt<br />
• .<br />
• For a disc of radius r, the total<br />
changing electric field is given by<br />
<br />
d<br />
dt<br />
<br />
E dA<br />
<br />
r<br />
R<br />
0 2<br />
I<br />
2<br />
R<br />
r<br />
I<br />
• Now use<br />
to find<br />
B<br />
<br />
<br />
B d<br />
0I r<br />
2<br />
R<br />
<br />
2<br />
d<br />
dt<br />
<br />
0 0<br />
E<br />
dA<br />
between plates.
Change language