Ohm’s law: How much current will be flowing through a 40.0 m length of cylindrical metal wire with radius 0.0 mm if it is connected to a source supplying 16.0 V?  The resistivity of this metal is 1.68 × 10-8

RC circuits: A  4.0 mF capacitor is discharged through a  4.0 k

Equipotential surfaces: A negative charge is moved from point A to point B along an equipotential surface. Which of the following statements must be true for this case?

Electric field in a wire: A tube of mercury with resistivity 9.84 × 10-7

Power: A certain electric furnace consumes 24 kW when it is connected to a 240 V line. What is the resistance of the furnace?

Ohm’s law: A cylindrical wire of radius  2.0 mm carries a current of  2.5 A. The potential difference between points on the wire that are  46 m apart is  3.7 V.(a) What is the electric field in the wire?  (2 points)(b) What is the resistivity of the material of which the wire is made? (2 points)

Capacitors in combination: Two capacitors of capacitance 6.00

Energy in capacitors: A  6.00

Sheets of charge: Two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other. The upper sheet carries +5.00 µC/m2. The electric field midway between the sheets is 4.25 × 105 N/C pointing downward. What is the surface charge density on the lower sheet?  (

Power: A 110 V hair dryer is rated at 1200 W.  What current will it draw when operating from a 110 V electrical outlet?