If 30 × 10¹⁵ Electrons Flow Through a Section of a a Wire

question 132

Multiple Choice

If 3.0 × 10¹⁵ electrons flow through a section of a wire of diameter 2.0 mm in 4.0 s,what is the current through the wire? (e = 1.60 × 10^-19 C)

• A)0.12 mA
• B)0.24 mA
• C)7.5 × 10⁷ A
• D)7.5 × 10¹⁴ A

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Definitions:

Adrenaline

A hormone secreted by the adrenal glands, increasing heart rate and energy in response to stress or excitement.

Cortisol

A steroid hormone produced by the adrenal glands, often increased in response to stress or low blood-glucose concentration.

Adrenal Glands

Small glands located on top of each kidney that produce hormones such as adrenaline and cortisol, which help control heart rate, blood pressure, and other body functions.

Anger-Linked

Associated with or influenced by the emotion of anger.