Consider the following circuit of three resistors (R1, R2, and R3), with batteries that have emfs ℰ1 = 10.5 V and ℰ2 = 42.5 V, and internal resistances r1 and r2. Randomized Variables ℰ1 = 10.5 V ℰ2 = 42.5 V Part (a)  Find the current I1, in amps.  Part (b)  Find the current I2, in amps.   Part (c)  Find the current I3 in amps.

a) Write an equation for the currents entering in/out of the top junction in Figure 1. Use I1 as the current coming from the left, I2 as the current going downward, and I3 as the current going to the right. b) You can draw three loops in order to solve this circuit. Write the corresponding voltage equations for these loops in terms of V1, V2, VA, and VB; where VA and VB are voltages across the resistors RA and RB respectively. c) Using Ohm's law combined with the equations you found above; express I1, I2, and I3 as equations in terms of the know quantities V1, V2, RA, and RB. d) Now you have all the information you need to express VA and VB as equations in terms of V1, V2, RA, and/or RB.

Consider the following circuit diagram. The potential difference across the battery is 40.0 volts, and it supplies a current of 5.00 amperes to the circuit. There is a current of of 2.70 amperes flowing through R1. Resistor R2 has a resistance of 5.50 ohms. What is the resistance of R3? Answer in ohms to two decimal places, but do not include units in your answer.

The two resistors are included in the circuit shown R1= 220 ohms R2= 200 ohms and delta V= 14 volts. Identify the type of circuit. What is the total (equivalent) resistance of the circuit? What is the current flowing into and out of the voltage source? The drops in voltage across the resistors are: deltaV1= ? And delta V= ? The current current flowing through each resistors is: I1= ? And I2= ?

Please answer each part (A-D)

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An ammeter whose internal resistance is 60 2 reads 5.43 mA when connected in a circuit containing a battery and two resistors in series whose values are 500 n and 450 2. Part A What is the actual current when the ammeter is absent? Express your answer using two significant figures. I = A

I need help with part c please.