QUESTION 7 in the figure the battery has enf25 V and ne resistance R? (Give your...
In the figure the battery has emf 23 V and negligible internal resistance. R1 = 4 Ω, The current through R1 is 1.3 A and the current through R3 is 4.5 A, what is the resistance R3? (Give your answer in decimal using "Ohm ) as unit)
In (Figure i) the battery has emf 39.0 V and negligible internal resistance. R1=6.00 Ω. The current through R1 is 2.50 A and the current through R3= 4.90 A.Part AWhat is the resistance R2 ?Part BWhat is the resistance R3 ?
& 6.00 V b 14. A battery with and no internal resistance supplies current to the circuit shown in Figure P18.14. When the double-throw switclh S is open as shown in the figure, the current in the battery is 1.00 mA. When the switch is closed in position a, the current in the battery is 1.20 mA. When the switch is closed in position b, the current in the battery is 2.00 mA. Find the resistances (a) R, (b) Re,...
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 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?
An ideal voltmeter V is connected to a 1.5 Ω resistor and a battery with emf 4.7 V and internal resistance 0.5 Ω as shown in the figure. What is the reading on the voltmeter? (Give your answer in decimal using V as unit)
If V = 20 V and the battery has no internal resistance, what is the current through R3 in the figure? R, = 1012 R2 2012 R3 = 2012 R=30 2 0.20 A 1.0 A 4.0 A 0.050 A
In Figure (a), both batteries have emf ε = 1.70 V and the external resistance R is a variable resistor. Figure (b) gives the electric potentials V between the terminals of each battery as functions of R: Curve 1 corresponds to battery 1, and curve 2 corresponds to battery 2. The horizontal scale is set by Rs = 0.200 Ω. What is the internal resistance of (a) battery 1 and (b) battery 2? 0.85 R V(V) 0 R -0.510 R...
A 9 V non-ideal battery has an internal resistance of 8.0 Ω. For what external resistance, R, connected to the battery will the power dissipated in the internal resistance be 18% of the power dissipated in the external resistance?
A battery with an emf of 3.00 V has an internal resistance r. When connected to a resistor R, the terminal voltage is 2.90 V and the current is 0.16 A. 1. What is the value of the external resistor R? 2. What is the internal resistance r of the battery? 3. What is the energy dissipated in the battery's internal resistance in 1.6 minutes? 4. When a second identical battery is added in series and the external resistor is...