1.The force between two parallel wires carrying currents in thesame direction is

Question

1.The force between two parallel wires carrying currents in thesame direction is?
a) Repulsive, because the electrons in each wire repel eachother.
b) Repulsive, because the magnetic fields surrounding the wireswill repel.
c) Attractive, because the magnetic fields surrounding the wireswill atract.

2.Magnetic flux through a loop wire?
a) Is a measure of the total number of magnetic field lines passingthrough the loop.
b) Will be a minimum when the plane of the loop is perpendicular tothe magnetic field.
c) Will always have a positive value.
d) All of the above

3. (True or False) Magnetic fields always form closed loops.

Explanation / Answer

Given : 1.The force between two parallel wires carryingcurrents in the same direction is?
c) Attractive, because the magnetic fields surrounding thewires will atract.
Parallel wires carrying currents will exert forces on each other.One wire sets up a magnetic field that influences the other wire,and vice versa. When the current goes the same way in the twowires, the force is attractive. When the currents go opposite ways,the force is repulsive 3. Magnetic fields always form closed loops. True
2.Magnetic flux through a loop wire?
a) Is a measure of the total number of magnetic field lines passingthrough the loop 3. Magnetic fields always form closed loops. True
2.Magnetic flux through a loop wire?
a) Is a measure of the total number of magnetic field lines passingthrough the loop

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