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klslaughter07
25.07.2020 •
Physics
Suppose I have a circular loop of wire with radius R. I run a current I through the loop and measure a magnetic field B at the center of the wire. If I double the radius of the wire and triple the current in the wire, what is the new magnetic field at the center of the wire
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Ответ:
Explanation:
The magnetic field at the center of the wire is given by :
Here,
I is current flowing throgh the loop
r is the radius of loop
If the radius of the wire is doubled and the current is tripled, then new magnetic field is given by :
So, the new value of magnetic field gets 3/2th of the initial magnetic field.
Ответ:
Explanation: The minimal velocity needed is when we have only vertical motion, then i will think in the problem only in one axis.