The figure shows a long straight wire carrying a current I, and a fixed loop
of wire that initially carries no current. The current I is now increased.
While it increases there is an induoed current in the loop
-* A~ I< Vrner Mum a Questcfw_on~.
When a current flows down a wire
cfw_a) electrons are moving opposite the direction of the current.
_)t' electrons are moving in the direction of the current.
The figure shows a long straight wire carrying
A kid is runnilg directly away from a plain mirror with a constant velocity
of~ What is the relative speed of the image with respect to the kid?
none of these
v(. A linearly polarized beam of ligh
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Chapter 20 - Electric Circuits
If the charges move around a circuit in the same direction at all times, the current is said
to be direct current (dc).
In contrast, the current is said to be alternating current (ac) when the charges move first