Resistivity of steel is larger than that of copper. If a copper wire and a steel wire are having the same length and area of cross section, which of the following statements is true? Resistance of the steel wire is more than that of the copper wire O b. Resistance of the steel wire is less than that of the copper wire Ос. Both wires are having the same resistance O d. From the given information, a conclusion cannot be made

9c Qa О qb a/2 30 30 2 a/2 a R 90 a 90 a/2 a/2 6060 R R 30 r 30 30 90 90 30 a/2 a/2 a http://www.treenshop.com/Ireenshop/ArticlesPages/HiguresUninterest Article/The%20Equilateral%20 Triangle.htm qa = +1.8 nc, qb = -7.5 nC, qc = -8.7 nC, a = 30.0 cm The point charges are located at the corners of an equilateral triangle of side a. Determine the electric field at the center of the right side of the triangle. R || = r = 3 h 6 t

Since &o=8.85 x 10-12 C2/N-m², the units of E² can be reduced to O J s m O N s m J m 3 3 N m W m

This time, V = 69.5 V; R1 = 107 Ohms; R2 = 72 Ohms; R3 = 56 Ohms; R4 81 Ohms; R5 = 185 Ohms; and R6 = 62 Ohms. How much current flows through = resistor R4? 0.072A 0.103A 0.217A 0.320A