Practice problem, four resistors are connectors in parallel as shown in diagram I(b). A battery with 12 volts is connected to these four resistors in series. If R, = 2 ohms=R, = R; =R4, the voltage from a battery is 12 volts, Find (1) The equivalent resistance for these 4 resistors (2)Find the current flowing from the positive terminal of the battery before splitting to 4 currents to go through R1, R2, R3, and R4 (2) The current flowing through the resistor 1 (3) The current flowing through the resistor 2 (4) The voltage drop (potential difference) across the resistor 3, V3 (5) The voltage drop (potential difference) across the resistor 4, V4 (6) The power dissipated in R1, P1 (7) The power dissipated in R2, P2 (8) Is the voltage drop from battery , 12 volts = V1=V2=V3=V4 ( answers from (4) and (5) ? (9) Is the total power dissipated in R1, R2, R3, and R4 equal to the power calculated by the current square (I’) times the equivalent resistance for these 4 resistors? (10) If these 4 resistors are connected in series, what would be the equivalent resistance? (11) Will the current flowing through each resistor in parallel (among the 4 resistors in parallel) equal to the current flowing through each of the resistor when they are connected in series

please show how to solve.

The angle between was counted as incorrect,

ANY HELP WOULD BE APPRECIATED, THANKS

I got -4*10**-18

Please help me with 7-10

- Figure above shows the cross section of a wall made of two layers. The thickness of the 2 nd layer is L2= 0.70L1. The thermal conductivities of the layers are 0.25 and 0.75 W/mK, respectively and thermal conduction is steady. If the temperatures at inlet and between the layers are Ti = 30.0°C and T=8 °C, respectively; what is the outside temperature To for unit area?

4-5 only