Author Question: A very long wire carries a uniform linear charge density of 7.0 nC/m. What is the electric field ... (Read 102 times)

rosent76 · **on:** Jul 29, 2018

A very long wire carries a uniform linear charge density of 7.0 nC/m. What is the electric field strength 16.0 m from the center of the wire at a point on the wire's perpendicular bisector? (0 = 8.85 10-12 C2/N m2)

A) 7.9 N/C
B) 3.9 N/C
C) 0.49 N/C
D) 0.031 N/C

Question 2

The coefficient of volume expansion of olive oil is 0.68 10-3 K-1. A 1.00-L glass beaker is filled to the brim with olive oil at room temperature. The beaker is placed on a range and the temperature of the oil and beaker increases by 25 C.

As a result, 0.0167 L of olive oil spill over the top of the beaker. What is the coefficient of linear expansion of the glass?
A) 1.0 10-6 K-1
B) 2.0 10-5 K-1
C) 4.0 10-6 K-1
D) 3.0 10-5 K-1
E) 1.0 10-5 K-1