# pe15f08 - Last updated September 2 2008 PHY 2054 Discussion...

This preview shows pages 1–2. Sign up to view the full content.

Last updated: September 2, 2008 PHY 2054 Discussion – Fall ‘08 Practice Exam Problems (Chapter 15) 1. A metallic object holds a charge of -3.8 × 10 -6 C. What total number of electrons does this represent? (Electronic Charge) a. 4.2 × 10 14 b.6.1 × 10 13 c. 2.4 × 10 13 d. 1.6 × 10 14 2. An uncharged conductor is supported by an insulating stand. I pass a positively charged rod near the left end of the conductor, but do not touch it. The right of the conductor will be: (Conservation of Electric Charge) a. negative b. positive c. neutral d. attracted 3. A 6.0 μC charge is placed at the origin and a second charge is placed on the x-axis at x = 0.30 m. If the resulting force on the second charge is 5.4 N in the positive x-direction, what is the value of its charge? (Coulomb’s Law) a. 9.0 μC b.9.0 nC c. -9.0 μC d. -9.0 nC 4. Two equal charges, each Q are separated by some distance. What third charge would need to be placed half way between the two charges so that the net force on each charge would be zero? (Coulomb’s Law-1D)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

pe15f08 - Last updated September 2 2008 PHY 2054 Discussion...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online