A Rod of Length L and Electrical Resistance R Moves

question 51

Multiple Choice

A rod of length L and electrical resistance R moves through a constant uniform magnetic field ; both the magnetic field and the direction of motion are parallel to the rod.The force that must be applied by a person to keep the rod moving with constant velocity is:

• A)0
• B)BLv
• C)BLv/R
• D)B²L²v/R
• E)B²L²v²/R

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Definitions:

Peristaltic Waves

Sequential muscle contractions that occur in the gastrointestinal tract to move contents through the digestive system.

Older Adult

An individual in the later stage of life, often categorized as someone who is 65 years or older.

Abdominal Musculature

The muscles located in the abdomen, including the rectus abdominis, obliques, and transversus abdominis, crucial for posture and movement.

Abdominal Tone

The condition of the abdominal muscles regarding their tightness or firmness, often assessed during physical examination.