7.The potential difference between two points A and B is 100V. A charge of 2.0 C is transported from A to B. The magnitude of the work done by the external force is:
a.200V
b.100 J
c.200 J
d.200 W
e.Zero
8. The statement that magnetic field lines form closed loops is a direct consequence of:
a.Ampere's Law
b.Gauss's law for electricity
c.Gauss's law for magnetism
d.Lorentz force
7.The potential difference between two points A and B is 100V. A charge of 2.0 C is transported from A to B. The magnitu
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