Three Long Parallel Wires Each Carry 2 $4.0 \mathrm {~cm}$ What Is the Magnitude of the Magnetic Field at Same

question 153

Multiple Choice

Three long parallel wires each carry 2.0-A currents in the same direction. The wires are oriented vertically, and they pass through three of the corners of a horizontal square of side $4.0 \mathrm {~cm}$ . What is the magnitude of the magnetic field at the fourth (unoccupied) corner of the square due to these wires? $\left( \mu _ { 0 } = 4 \pi \times 10 ^ { - 7 } \mathrm {~T} \cdot \mathrm { m } / \mathrm { A } \right)$

• A) \(12 \mu \mathrm { T }\)
• B) \(21 \mu \mathrm { T }\)
• C) \(2.1 \mu T\)
• D) \(1.2 \mu \mathrm { T }\)
• E) \(0 \mathrm {~T}\)

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Definitions:

Phallic Stage

A stage in Freudian psychosexual development, occurring roughly between the ages of three and six, during which a child's focus of pleasure is on the genital area.

Latency Stage

A phase in Freudian psychosexual development occurring between ages 6 and puberty, characterized by a decrease in sexual interest and focus on social and intellectual growth.

Personality Development

The growth and development of the aspects of a person that involve their character and personality traits over time.

Oedipus Complex

A concept in psychoanalytic theory describing a child's feelings of desire for the opposite-sex parent and jealousy and rivalry toward the same-sex parent.