(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
(a) Find the current in a 8.80 Ω resistor connected to a battery that has an...
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?
A battery with an emf of 12.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 11.70 V and the current is 0.20 A.A) What is the value of the external resistor R?B) What is the internal resistance r of the battery?C) What is the energy dissipated in the battery's internal resistance in 3.7 minutes?D) When a second identical battery is added in series and the external resistor is R = 28 Ohms...
A battery with an emf of 9.75 V is connected to a 67.0 Ω resistor. The current through the battery is 115 mA. What is the battery's internal resistance (in Ω)? Ω
A 50-Ω resistor is connected across a battery, and a 26-mA current flows. When the 50-Ω resistor is replaced with a 23-Ω resistor, a 43-mA current flows. A) What is the battery's voltage? B) What is internal resistance? I need the correct answers to 2 significant figures.
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 9.00-Ω resistor and a 3.00-Ω resistor are connected in parallel across a 9.00-V battery. Find (a) the current through, and (b) the voltage drop across, each 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...
A car battery has an emf of 12.0 V and an internal resistance of 0.20 Ω. While the car is running, the resistance of the rest of the car (the “load” resistance) is 1.00 Ω. What is the current through the battery? What is the terminal voltage of the battery? What is the power delivered to the rest of the car? What is the power dissipated as heat by the internal resistance of the battery?
A real battery is not just an emf. We can model a real 1.5 V battery as a 1.5 V emf in series with a resistor known as the "internal resistance", as shown in the figure(Figure 1) . A typical battery has 1.0 Ω internal resistance due to imperfections that limit current through the battery. When there's no current through the battery, and thus no voltage drop across the internal resistance, the potential difference between its terminals is 1.5 V,...
An ideal voltmeter V is connected to a 2.0 O resistor and a battery with emf 5.0 V and internal resistance 0.5 O as shown in the figure on the right. (a) What is the current in the 2.0 O resistor? (b) What is the terminal voltage of the battery? (c) What is the reading on the voltmeter? Explain your answers.