Two long parallel wires, each carrying a current of 2 a, lie a distance 25 cm from each other. if the distance between the wires is tripled, (a) by what multiplicative factor is the force per unit length changed?

the force will become 1/3 times the initial force

Explanation:

As we know that force between two current carrying wires is given by the formula

here we know that

= currents flowing in two wires

L = length of the wire on which force is to be calculated

d = distance between two wires

now let say the distance between the wires is "d"

so the force between the wires will F1

now the distance is increased by factor of 3

so the force between the wires is given as

so here we can say that the new force between two wires is decreased by factor of 3

so the force will become 1/3 times the initial force

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.