History, 13.02.2022 19:40 jetblackcap
A scientist runs an electric current along a wire. A magnetic compass is placed nearthe wire. The scientist observes that whenever the current is turned on, the compass needle moves. Why does the compass needle move? Using the formula KE = 4 mv?
(where m= mass and v= velocity), what is the kinetic energy of a 8 kilogram ball
traveling at 3 m/s?
The current creates an electric field around the wire
The current creates a magnetic field around the wire
The current adds electric charge to the compass needle
The current increases the force of gravity on the compass needle
Answers: 2
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A scientist runs an electric current along a wire. A magnetic compass is placed nearthe wire. The sc...
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