An Unusual Lightning Strike Has a Vertical Portion with a Positive

question 67

Multiple Choice

An unusual lightning strike has a vertical portion with a positive current of +400 A upwards. The Earth's magnetic field at that location is parallel to the ground and has a magnitude of 30 μT. In N, the force exerted by the Earth's magnetic field on the 25 m-long current is

• A) 0.
• B) 0.012 N, East.
• C) 0.012 N, West.
• D) 0.30 N, West.
• E) 300 N, East.

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Definitions:

Decreased Breath Sounds

A condition where the intensity of breathing sounds is less than expected upon auscultation, often indicative of respiratory issues.

Whispered Pectoriloquy

A test in which whispered phrases are more clearly and distinctly heard through the chest wall with a stethoscope, indicative of lung consolidation.

Adventitious Sounds

Unusual sounds heard during respiration, such as crackles, wheezes, or stridor, which are indicative of respiratory conditions.

Trachea Bifurcate

The point at which the trachea splits into two bronchi, facilitating air passage into the lungs.