What is on the x-axis of a speed graph
1 answer:
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Direction of the current:
From the bottom of the wire to the top
Explanation:
The magnetic field produced by a current-carrying wire forms concentric circles around the wire; its magnitude is given by
whrere
is the vacuum permeability
I is the current in the wire
r is the distance from the wire
The direction of the magnetic field produced by a current-carrying wire can be found by using the right-hand rule:
- The thumb of the right hand is placed in the same direction as the current
- The other fingers, wrapped around the thumb, give the direction of the magnetic field
In this case, the wire is vertical and the magnetic field is counter clockwise (looking from the top), therefore we need to put the thumb from the bottom to the top in order to get the same direction for the field: therefore, the direction of the current is
From the bottom of the wire to the top
Learn more about magnetic fields:
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Answer:
The work done will be 0.115 J.
Explanation:
Given that,
A force along the x-axis with x-component,
Suppose, How much work must be done to stretch this spring by 0.050 m from its unstretched length?
We need to calculate the work done
Using formula of work done
Put the value into the formula
Put the value of k,b,c and x
Hence, The work done will be 0.115 J.