Unformatted text preview: m C charge. How much work would be required by an external force to move a +0.10 m C test charge from a point midway between them to a point 1.0 cm closer to either of the charges? P23-47) In a certain region of space, the electric potential is given by V = y 2 +2xy-4xyz. Determine the electric field vector E in this region. P24-68) A homemade capacitor is assembled by placing two 9 inch pie pans 10cm apart and connecting them to the opposite terminals of a 9V battery. Estimate (a) the capacitance, (b) the charge on each plate, (c) The electric field halfway between the plates, (d) the work done by the battery to charge the plates. (e) Which of the above values change if a dielectric is inserted? P25-6) An electric device draws 5.50A at 110V. (a) If the voltage drops by 10%, what will be the current, assuming nothing else changes? (b) If the resistance of the device were reduced by 10%, what current would be drawn at 110V?...
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- Spring '08
- Electric Potential, Electric charge, Chapter Chapter Chapter