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

question 147

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 in 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