Consider the circuits shown below. Look at each circuit carefully, as the (a) circuit is not identical to the (b) circuit. Give all your answers as positive quantities.

Suppose you have a circuit in which you have connected 3 batteries, each of which that has voltage of 2.8V, in series with each other such that the positive terminal of one battery is connected to the negative terminal of the next (and so on), what is the resulting voltage? Note:  It is understood that the unit of your answer is in Joules (J), however do not explicitly include units in your answer.  Enter only a number.

For the circuit shown in Figure 2, Determine the current through each circuit HINT: There are 5 unknown current values. This can be solved by writing a system of 5 independent equations for the 5 current values OR you may simplify the circuit (while being sure not to change any connection between batteries!) and then solve for 3 unknown current values and find the remaining 2 current values by analyzing the original circuit. 2. Determine the power input to the circuit by the batteries and the power dissipated from the circuit by the resistors. Demonstrate that energy is conserved by showing that “Power in = Power out”. HINT: What happens when current flows into the positive terminal of a battery instead of out of it?

Calculate the power delivered to each resistor in the circuit shown in the figure below. (Let R1 = 5.00 Ω, R2 = 2.00 Ω, and V = 15.0 V.)   See image for original question and circuit diagram.