A New Look at Electric Potential

A New Look at Electric Potential

Induced electric fields are produced not by static charges but by a changing magnetic flux. Although electric fields produced in either way exert forces on charged particles. there is an important difference between them. The simplest evidence of this difference is that the field lines of induced electric fields form closed loops. as in charges. In a more formal sense, we can state the difference between electric fields

Equation 31-27 gives the magnitude of the electric field at any point for which r S R (that is, within the magnetic field). Substituting given values yields, for the magnitude of Eat r = 5.2 em,
E = (5.2 X 10-
2
m) (0.13 TIs)
2
= 0.0034 VIm = 3.4 mV/m. (Answer)

Share This