A coil of Nichrome wire is 25.0 m long. The wire has a diameter of 0.400mm and is at 20.0°C. If it carries a current of 0.500 A,
1 answer:
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Answer:
1.6 x N
Explanation:
If the force between two actual wires has this value, the current is defined to be exactly 1 A.
The force between two parallel wires carrying current can be defined as,
F= μ
L/ 2πd
where,
current = 1Amp
current = 2amp
Length 'L'= 1m
distance 'd'= 2.5m
permeability of free space 'μ'= 4πx N/m
Putting the above values in the equation,
F=( 4πx x 1 x 2 x 1 )/ 2πx2.5
F= 1.6 x N
Answer:
The current of the outer coil is
Explanation:
From the question we are told that
The number of turns of the inner coil is
The radius of the inner coil is
The current of the inner coil is
The number of turns of the outer coil is
The radius of the outer coil is
Generally the net magnetic field is mathematically represented as
Now from told that the net magnetic field is common
So
Here is the permeability of free space
making the subject
substituting values