2. A voltmeter measures a) the amount of electrons flowing in a circuit b) the total amount of energy available from a battery c) the amount of energy available to each coulomb of charge d) the rate of energy use of a circuit 3. If the electrical circuit in your Iphone were compared to the analogy of a water park,, then the battery would be comparable to a. the people that slide from the elevated positions to the ground b. the obstacles that stand in the path of the moving water c. the pump that moves water from the ground to the elevated positions d. the pipes through which water flows Question 4 and 5 refer to the simple circuit below. The wires are considered to be ideal conductors (they have no resistance). We will consider positive (conventional) current flowing from terminal A. 4. Which of the following points in the circuit are at the same potential? a) A and D b) A and B c) B and D d) B and C 12 Volts 5. Which of the following points in the circuit is at the LOWEST potential? a) A b) B c)c d) D 6. For resistors (or loads) connected in series, the total equivalent resistance a) depends on current b) is less than any of the individual resistances c) is greater than any of the individual resistances d) is the average of the resistances 7. Which device is used to measure the resistance of a load? a galvanometer b) voltmeter c) ohmmeter d) ammeter 8. . Magnetic field lines a) are stronger at the poles b) can cross one another c) are affected by gravity d) exist in two dimensions only 9. Which of the following transformer ratios, Np/Ns, will produce the least voltage in the secondary circuit? a) 600/125 b) 25/125 c)30/90 d) 130/50 10. Which of the following is a unit of electrical energy? a) watt b) volt c) joule d) ohm