# THIRD EXAMINATION DECEMBER 9 2020(1).docx - LIU PHYSICS OF...

• 4

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 1 - 2 out of 4 pages.

LIU PHYSICS OF PHARMACY (PHY 27)NAME_______________________________________________1.Three point 2.0 nC, 3.0 nC and - 5.0 nC charges are located at the corners of an equilateraltriangle in Fig.1. Find the direction and magnitude of the net force on the -5.0 nC charge, thelength of the side is 5 cm.2.In fig. 2 determine the points at which the total electric field is zero, if distance between twocharges is 3 m.3.The charge flowing through a light bulb attached to a 12.0-V battery in 5.0 s is 20.0 µC. What isthe total energy delivered to the filament during this process?4.4.Number 10 copper wire (radius = 1.3 mm) is commonly used for electrical installations inhomes. What is the voltage drop in 40 m of #10 copper wire if it carries a current of 10 A? (Theresistivity of copper is 1.7108m.)5.Resistors of values 10.0 Ω, 20.0 Ω, and 40.0 Ωare connected in parallel across a battery with asmall internal resistance. Which resistor dissipates the greatest power? Why?6.A square 2525 cm coil of wire consisting of 50 turns, , is positioned perpendicularly to a

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 4 pages?

Course Hero member to access this document

Term
Fall
Professor
N/A
Tags
Magnetic Field, Electric charge, LIU PHYSICS OF PHARMACY