A resistor with a resistance of 12 Ω is connected in series with two batteries both of unknown voltage. The current through the resistor is 5.7 A. The second battery is removed from the circuit. The current through the resistor is now 3.2 A. Calculate the potential differences of both batteries. Show your work and explain your reasoning.
The potential difference of batteries

A resistor with a resistance of 12 Ω is connected in series with two batteries both...
You have two batteries, both with an emf of 1.5V. The internal resistance of the first battery is 0.5 Ohm, and the internal resistance of the second battery is 1 Ohm What will be the current through an external resistor with a resistance of 2 Ohm, if the two batteries are connected in series? What will be the current through an external resistor with a resistance of 2 Ohm, if the two batteries are connected in parallel? What will be...
You have two batteries, both with an emf of 1.5V. The internal resistance of the first battery is 0.5 Ohm, and the internal resistance of the second battery is 1 Ohm. What will be the current through an external resistor with a resistance of 2 Ohm, if the two batteries are connected in series? What will be the current through an external resistor with a resistance of 2 Ohm, if the two batteries are connected in parallel? What will be...
A 6.00 Ω resistor and a 7.17 Ω resistor are connected in series with a 12.0 V battery. Assuming the battery contributes no resistance to the circuit, find the power (in Watt) dissipated through the 6.00 Ω resistor.
A 50-Ω resistor and a 28-Ω resistor are connected in series to a 12-V battery of negligible resistance. What is the current flowing through each resistor?
1)A battery having an e.m.f. of 105 V and an internal resistance of 1 Ω is connected in parallel with a d.c. generator of e.m.f. 110 V and internal resistance of 0.5 Ω to supply a load having a resistance of 8 Ω. Calculate: (a) the currents in the battery, the generator and the load; (b) the potential difference across the load. 1)b.Two batteries are connected in parallel. The e.m.f. and internal resistance of one battery are 120 V and...
A 4.0-Ω resistor, an 8.0-Ω resistor, and a 12-Ω resistor are connected in series with a 24-V battery. What are the equivalent resistance?
A 4.00-Ω resistor, an 8.00-Ω resistor, and a 24.0-Ω resistor are connected together. (a) What is the maximum resistance that can be produced using all three resistors? (b) What is the minimum resistance that can be produced using all three resistors? (c) How would you connect these three resistors to obtain a resistance of 10.0 Ω? (d) How would you connect these three resistors to obtain a resistance of 8.00 Ω? Draw a circuit diagram • Label all the circuit...
An ammeter is connected in series to a battery of voltage
Vb and a resistor of unknown resistance Ru
(Figure 1) . The ammeter reads a current Io. Next, a
resistor of unknown resistance Rr is connected in series
to the ammeter, and the ammeter's reading drops to I1.
Finally, a second resistor, also of resistance Rr, is
connected in series as well. Now the ammeter reads
I2.
If I1/I0=4/5, find
I2/I0.
Express the ratio I2/I0 numerically.
I2/I0 =
Three resistors in a series connected to a battery A 2.90 Ω resistor, a 5.79 Ω resistor, and a 9.96 Ω resistor are connected in series with a 15.0 V battery. What is the equivalent resistance? What is the current in each resistor?
Six 1.50 V batteries are connected in series, with the positive terminal of one battery connected to the negative terminal of the next. What is the emf of the combination? If the internal resistance of each battery is 2.00 Ω, find the terminal voltage when there is a current of 200 mA in the circuit.