An Unusual Lightning Strike Has a Vertical Portion with a Current

question 54

Multiple Choice

An unusual lightning strike has a vertical portion with a current of −400 A downwards. 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:

Cognitive Development

The process by which individuals acquire and evolve their abilities in thinking, reasoning, and understanding through various stages of life.

Piaget

A Swiss psychologist best known for his pioneering work in the field of developmental psychology and his theory of cognitive development in children.

Conservation

The protection, preservation, management, or restoration of natural environments and the ecological communities that inhabit them.

Piaget's Stages

A theory outlining four stages of cognitive development in children, including sensorimotor, preoperational, concrete operational, and formal operational stages.