20% part (a) use an "e field sensor" and move it along either equipotential. what can you say about the e field along an equipotential?
a. varies in magnitude and direction, parallel to the equipotential.
b. constant magnitude, but varying direction, perpendicular to the equipotential.
c. varies in magnitude and direction, perpendicular to the equipotential.
d. constant direction, but varying magnitude, perpendicular to the equipotential.
e. constant direction, but varying magnitude, parallel to the equipotential.
f. constant magnitude, but varying direction, parallel to the equipotential.

b. Constant magnitude, but varying direction, perpendicular to the equipotential.

Explanation:

As we know that the relation between electric field and electric potential is given as

here if we say that potential is constant because electric field sensor is moving along equi-potential line.

Then we will say

V = constant

so we have

so electric field will remain constant always in magnitude and always remains perpendicular to the surface

so we have

b. Constant magnitude, but varying direction, perpendicular to the equipotential.

i sometimes feel that way too. i feel that i should hurt someone because they hurt me, but i wouldnt do it. that would make things so much worse i have so much experience with this stuff

explanation:

battery with hi vtge high val resist in series