With a 1600 MΩ resistor across its terminals, the terminal voltage of a certain battery is 2.60 V . With only a 5.27 Ω resistor across its terminals, the terminal voltage is 1.74 V .
PART: A
Find the internal emf of this battery.
Express your answer in volts to three significant figures.
PART: B
Find the internal resistance of this battery.
Express your answer in ohms to three significant figures.
PART: C
What would be the terminal voltage if the 5.27 Ω resistor were replaced by a 7.27 Ω resistor?
Express your answer in volts to three significant figures.