The lines of force (field lines) and the equipotential surfaces are always a. pa

Question

The lines of force (field lines) and the equipotential surfaces are always
a. parallel to each other near the source charges and perpendicular at great distances from the charges.
b. perpendicular to each other near the source charges but parallel when farther away.
c. parallel to each other at every point.
d. perpendicular to each other at every point.

The gradient of the electric potential is called the
a. electric charge.
b. Coulomb.
c. electric field.
d. capacitance.
e. equipotential.

A circuit in which the path for current has been broken is commonly called
a. a grounded circuit.
b. a closed circuit.
c. an occluded circuit.
d. an open circuit.

The terminal potential difference (voltage) measured for a cell (battery) is typically less than the emf because
a. the battery has internal resistance.
b. some of the current leaks away.
c.the battery is a current sink.
d.the battery is not fully charged.
e. the battery has no source of charge.

Explanation / Answer

d. perpendicular to each other at every point.

c. electric field.

d. an open circuit.

a. the battery has internal resistance.

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