You may use a calculator. What is a potentiometer? O a component with a fixed resistance O an electric device for variable resistance a component that stores charge O a component that supplies voltage 4 1 3 4 5 6 7 8 9 10 NextYou may use a calculator. How will the total voltage of a string of light bulbs in series change as you add more bulbs to the string? The total voltage will decrease. O You cannot predict what will happen to the voltage. The total voltage will increase The total voltage will stay the same 1 2 4 5 6 17 8 9 10 NextYou may use a calculator. For the circuit shown, which of the following is true? AV 0 12 > I1 0 12 2 6 7 18 1 BANG & OLUFSENYou may use a calculator. If 2. 0 x 10 * C of charge passes a point in 5. 0 x 10 s , what is the rate of current flow? 1.0 x 102 A 0 4.0 x 10' A 0 1.0 X 10 10 A 0 4. 0 X 10 A 1 2 3 4 5 6 7 8 9 10 Next60 Reading Off You may use a calculator. An electric oven has a resistance of 10.0 0 and a voltage of 220 V. How much current does it draw? O 2.2 A O 22 A 220 A O 2,200 A 1 2 3 4 5 7 8 9 10 NextCurrents and Circuits - Part 1 Reading Off You may use a calculator. In this circuit, which resistor will have the greatest amount of current flowing across it? R. = 2.0 0 M AV= + R2 12.0 V 4.0 0 RJ - 50 Q O R3 O R2 O R1 O Current will pass equally through each resistor. 3 5 7 8 9 10 11 Next 4 6Currents and Circuits - Part 1 6@ Reading Off You may use a calculator. What is the equivalent resistance of a parallel circuit with a 5.0 kQ resistor, a 2.5 kQ resistor, and 10.0 kQ resistor? O 1.4 kQ O 10 kQ 0 0.83 kQ O 18 KQ O 0.10 KQ 3 4 5 6 8 9 10 11 12 NextK12 X C @ A Q You may use a calculator. If each resistor in the circuit shown is 5.0 Q and the battery is 12.0 V, what does the second voltmeter (V2) read? R1 + A Vtotal V1 R2 R M O 0.35 V O 2.4 V O 0.96 V O 4.8 V 4 5 6 8 9 10 11 12 13 NextUNIT TEST: Currents and Circuits - Part 1 Reading Off You may use a calculator. If a 10.0 W device pulls 2.0 A of current, what voltage exists across it? 5.0 x 102 V 0 5.0 x 103 V 0 5.0 x 101 V 0 5.0 x 10' V 5 6 8 9 10 11 12 13 14 NextYou may use a calculator. When this circuit is closed, which way do the electrons flow? Ry AN O from the negative end of the battery through the capacitor through the resistors to the positive end O from the negative end of the battery through the resistors through the capacitor to the positive end from the positive end of the battery through the resistors through the capacitor to the negative end O from the positive end of the battery through the capacitor through the resistors to the negative end