1.91 V is the correct answer to the given problem.
Let and r be the internal EMF and resistance of the battery.
For the 1500 resistance (say ), the equation for internal EMF of battery is,
where is the current flowing in the circuit with resistance connected.
The current flowing in the circuit is given as,
with as the terminal voltage in this case.
Similarly, for the 5 resistance (say ), the equation for internal EMF of battery is,
Equating both the equations to find r,
The internal EMF of the battery may be obtained from the second equation for as,
In the case of 7.00 resistor (say R) connected across the battery, the current (I) in the circuit is given as,
The terminal voltage (V) in this case is,
10. A 1500 MS2 resistor is placed across the terminals of a battery, and a terminal...
9, A complete series circuit consists of a 12.0 V battery, a 4.70 Ω resistor, and a switch in the (1 point) closed position. The internal resistance of the battery is 0.30 2. What does an ideal voltmeter read when placed across the terminals of the battery? O12.0 V 024.0 V 02.40 V 11.3 10. A 1500 ΜΩ resistor is placed across the terminals of a battery, and a terminal voltage of 2.50 (1 point) V is measured, when this...
With a 1500 MΩ resistor across its terminals, the terminal voltage of a certain battery is 2.63 V . With only a 5.10 Ω resistor across its terminals, the terminal voltage is 1.72 V . Part A) Find the internal emf of this battery. Part B) Find the internal resistance of this battery. Part C) What would be the terminal voltage if the 5.10 Ω resistor were replaced by a 7.10 Ω resistor?
With a 1500 MΩ resistor across its terminals, the terminal voltage of a certain battery is 2.60 V . With only a 5.11 Ω resistor across its terminals, the terminal voltage is 1.80 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...
With a 1600 MΩ resistor across its terminals, the terminal voltage of a certain battery is 2.64 V . With only a 5.12 Ω resistor across its terminals, the terminal voltage is 1.81 V What would be the terminal voltage if the 5.12 Ω resistor were replaced by a 7.12 Ω resistor? Find the internal resistance of this battery
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.18 V. The internal resistance of the battery is 1.04 Ω. Find the voltage across the battery terminals when there is a current of 1.96 A from the negative to the positive terminal.
A: When a 20 om resistor is connected across the terminals of a 12 V battery, the terminal voltage of the battery falls to 10 V. What is the internal resistance of the battery? C: The capacitor is initially uncharged. When the switch is closed to "a", current starts to flow.V=20.0V, C=1.02 muF If the current from the battery is initially 0.2 A, what is the time constant for this RC circuit? (Answer in seconds)
A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals as shown. The capacitor initially uncharged. At the moment the switch is closed the voltage across the capacitor is equal to the battery's terminal voltage less than the battery's terminal voltage, but greater than zero. equal to the battery's terminal voltage zero.
The voltage across the terminals of a 9.0 V battery is 8.1 V when the battery is connected to a 40 Ω load. What is the battery's internal resistance?
Question 21 If the terminal voltage of the 9.0-V battery connected across 10-resistor Ris 8.4V, what is the internal resistance r of the battery 1 pts R 0250 0.900 800 Question 2
(a) Find the current in a 8.80 Ω resistor connected to a battery that has an internal resistance of 0.20 Ω if the voltage across the battery (the terminal voltage) is 8.05 V. A (b) What is the emf of the battery? V