PLEASE HELP!!! When you lift a book from the ground to your desk, what kind of work do you do, negative or positive? By lifting
1 answer:
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Voltage drop is a better measurement of resistance than testing static resistance because: current flow creates heat which adds to circuit resistance
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Answer:
In a velocity selector, there are two forces namely;
» Electric field Intensity
» Magnetic field density
<u>Relationship</u><u>:</u>
E is the electric field intensity
B is the magnetic flux density