Each of Two Long Straight Parallel Wires Separated by a Distance

question 15

Multiple Choice

Each of two long straight parallel wires separated by a distance of 16 cm carries a current of 20 A in the same direction. What is the magnitude of the resulting magnetic field at a point that is 10 cm from each wire?

• A) 57 μT
• B) 80 μT
• C) 64 μT
• D) 48 μT
• E) 40 μT

---

Definitions:

FICA - Social Security

A U.S. federal program funded by payroll taxes under the Federal Insurance Contributions Act (FICA) aimed at providing retirement, disability, and survivors' benefits.

Withheld

Referring to the portion of an employee's wages not paid directly to the employee but instead held back, often for tax purposes.

Matched by Employer

Refers to contributions that an employer makes to an employee's retirement plan, equal to the amount the employee contributes up to a certain percentage.

Installment Note

A loan that requires regular payments, or installments, over a set period of time, until the principal and interest are paid in full.