Four Long, Straight Wires Are Parallel to Each Other; and Their

question 59

Multiple Choice

Four long, straight wires are parallel to each other; and their cross-section forms a square. Each side of the square is 0.020 m as shown in the figure. If each wire carries a current of 8.0 A in the direction shown in the figure, determine the magnitude of the total magnetic field at P, the center of the square.

• A)5.1 × 10^-5 T
• B)1.1 × 10^-4 T
• C)1.7 × 10^-4 T
• D)2.3 × 10^-4 T
• E)zero tesla

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Definitions:

Balance Sheet Approach

A method in accounting that focuses on valuing assets and liabilities at their current fair market values.

Adjusting Journal Entry

A journal entry made at the end of an accounting period to allocate income and expenses to the appropriate periods.

Allowance for Doubtful Accounts

This is a subsidiary asset account created to approximate the amount of accounts receivable that could potentially be non-collectable.

Bad Debts Expense

An expense account reflecting estimated uncollectible amounts from customers for credit sales made in a specific period.