Module 4 DBA and Exam Review Guide 1. Define: a) Kirchhoff's First Rule, or Junction Theorem b) Coulomb's Law c) Insulator d) Conductor e) Electric field, concepted developed by? f) capacitance g) Right - hand rule h) Magnetism i) Genecon What are the parts of a light bulb that are insulators and conductors? What force is exerted on a test charge of 0.00035 C, if it is placed in an electric field of magnitude 2.0 E 2 N/C? Given a circuit with two 10-ohm resistors in series with a 12-volt battery, what is the current in the circuit? A water heater requires 24 amps of current, the voltage supplied is 120 V. What is the water heater's resistance? How strong is the repulsive force exerted on two point charges that each carry 2.0 E-4 C of negative charge and are 0.25 meters apart? What is the intensity of an electric field at a point where a 0.65 C charge experiences a force of 50. N? According to Coulomb's Law, if the distance between the nucleus and electron were tripled, the force would be? How is the direction of an electric field determined? A bulb lights in a circuit, is the direction of the current the same in all parts of the circuit? What determines the direction of the charge in a circuit? Light bulbs convert electricity into... If given a circuit with a compass and a bulb, when the on switch was flipped how would you determine if the circuit was complete? How does a capacitor work? How does a capacitor work within a circuit? How can you determine the resistance value in a resistor using the color codes? What are some characteristics that affect the resistance in a circuit? Are the wires ever empty of charge? What are the three qualities that determine the resistance level of a wire? Does adding resistors in series increase or decrease the overall resistance of a circuit? Does adding resistors in parallel increase or decrease the overall resistance of a circuit? Cynthia forgot to put the fabric softener in the wash. As her socks tumbled in the dryer, they became charged. If a small piece of lint with a charge of +1.25 E -10 C is attracted to the socks by a force of 3.0 E -6 N, what is the magnitude of the electric field at this location? Is the conventional current flow the same direction as the flow of the electrons? There is a force between two charges; if the distance between the two charges is tripled by what factor does the force between them change? If the cross-section of a wire of fixed length is doubled how does the resistance of that wire change? When the current is the same through all of the resistors and the batteries of a circuit you have resistors in _____. What causes a compass to deflect when moved near wires that carry current