Two Long Parallel Wires Carry Currents of 10 a in Opposite

question 44

Multiple Choice

Two long parallel wires carry currents of 10 A in opposite directions. They are separated by 40 cm. What is the magnetic field in the plane of the wires at a point that is 20 cm from one wire and 60 cm from the other?

• A)1.5 × 10^-6 T
• B)3.3 × 10^-6 T
• C)6.7 × 10^-6 T
• D)3.3 × 10^-5 T
• E)6.7 × 10^-5 T

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Definitions:

Underground Stem

A stem of a plant that grows beneath the surface of the soil which can store food or be reproductive, examples include rhizomes and tubers.

Modified Leaves

Leaves that have undergone changes to perform specialized functions beyond photosynthesis, such as tendrils for climbing or spines for protection.

Circumference

Circumference is the linear distance around the edge of a circle or circular object.

Apical Meristems

Regions at the tips of plant roots and shoots where cells actively divide, leading to growth.