Two Parallel Wires, 4 Cm Apart, Carry Currents of 2

question 47

Multiple Choice

Two parallel wires, 4 cm apart, carry currents of 2 A and 4 A respectively, in the same direction. The force per unit length in N/m of one wire on the other is:

• A) 1 * 10^-3, repulsive
• B) 1 *10^-3, attractive
• C) 4 * 10^-5, repulsive
• D) 4 *10^-5, attractive
• E) none of these

---

Definitions:

Very Inelastic

Describes a situation in which the demand for a product or service shows little to no response to changes in price.

Market Period

An extremely short duration in which the supply of a good is fixed, unable to adjust to changes in demand, typically because the period is so brief.

Productive Capacity

The maximum output a firm or economy can produce when using all available resources efficiently.

Calculate Elasticity

The process of assessing how the quantity demanded or supplied of a good changes in response to changes in its price or other factors.