A battery has an emf epsilon and an internal resistance r. When the battery is c

Question

A battery has an emf epsilon and an internal resistance r. When the battery is connected to a 25 - Ohm resistor, the current through the battery is 0.60A . When the battery is connected to 55 - Ohm resistor, the current is 0.50A. Find the battery's emf. Express your answer using two significant figures. Find the battery's internal resistance. Express your answer using two significant figures. Two batteries and three resistors are connected as shown in the figure (Figure 1). Determine the magnitude of the current that flows through 6.0 -V battery when the switch is closed? Express your answer using two significant figures. Determine the magnitude of the current that flows through 9.0 -V battery when the switch is closed? Express your answer using two significant figures. Determine the magnitude of the current that flows through 6.0 -V battery when the switch is open ? Express your answer using two significant figures.

Explanation / Answer

I through 6V battery = 0.24A

I through 9V battery = 33/38 A = 0.86A

0.5A

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.