What is the emf of a battery with a 0.15 00 internal resistance if the battery delivers 1.5 A to an externally connected 5.0 ΩΩ resistor?
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Q: In the figure the current in resistance 6 is i6 = 1.42 A and the resistances are R1 = R2 = R3 = 2.06…
A: Given data: i6=1.42 AR1=R2=R3=2.06 ΩR4=14.9 ΩR5 =7.48 ΩR6=3.61 Ω
Q: the current and (b) the power dissipated in
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Q: A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.4 V when it is delivering…
A: a) We know that power P= V2/R R= 11.42/16 R= 8.12Ω
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- A battery has a terminal voltage of 13.5 V when no current flows. Its internal resistance is 2.00 Ω. A 3.30-Ω resistor is connected across the battery terminals. What is the current through the 3.30-Ω resistor?An idealized voltmeter is connected across the terminals of a 15.5 V battery, and a 71.0 Ω appliance is also connected across its terminals. If the voltmeter reads 10.6 V. How much power is being dissipated by the appliance? What is the internal resistance of the battery?A battery has an emf of 15.0 V. The terminal voltage of the battery is 11.0 V when it is delivering 22.0 W of power to an external load resistor R. (a) What is the value of R? Ω (b) What is the internal resistance of the battery? Ω
- 6. In the figure R1 = 6.65 N, R2 = 20.0 N, and the ideal battery has emf ɛ = 13.9 V. How much energy in J is dissipated by all four resistors in 0.02017 hour? R1 R R2 ww (a) 1.98x10² (b) 1.05x103 (c) 2.02x10³ (d) 1.83x10³ (e) None of the aboveA battery has an emf of 15.0 V. The terminal voltage of the battery is 10.6 V when it is delivering 22.0 W of power to an external load resistor R. (a) What is the value of R? Ω (b) What is the internal resistance of the battery? ΩA battery has an emf of 15.0 V. The terminal voltage of the battery is 10.8 V when it is delivering 26.0 W of power to an external load resistor R. (a) What is the value of R? (b) What is the internal resistance of the battery?
- A battery has an emf of 10.0 V with an internal resistance of 0.0400 Ω. Its terminals are connected to a network of resistors with equivalent resistance of 2.00 Ω. What is the power delivered to the network? 49.0 W 47.0 W 50.0 W 48.0 WA resistor of R= 50 ohms is connected in series to a capacitor C=3.0 microfarads and a battery with emf=12.0 V. How long does it take for the capacitor to reach 40% of its max possible charge after the switch is closed? a) 38.3 microseconds b) 76.6 microseconds c) 115 microseconds(a) Given a 52.0 V battery and 20.0 Ω and 84.0 Ω resistors, find the current (in A) and power (in W) for each when connected in series. I20.0 Ω= A P20.0 Ω= W I84.0 Ω= A P84.0 Ω= W (b)Repeat when the resistances are in parallel. I20.0 Ω= A P20.0 Ω= W I84.0 Ω= A P84.0 Ω= W
- Four 20.0 W resistors are connected in parallel and the combination is connected to a 20.0 V ideal battery. The current in any one of the resistors is:A 39.4-Ω resistor and a 19.5- resistor are connected in series across a 12.7-V battery. What is the voltage across (a) the 39.4- resistor and (b) the 19.5- resistor?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. 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, the value of the emf. Suppose the terminals of this battery are connected to a 2.0 Ω resistor.a. What is the potential difference between the terminals of the battery?b. What fraction of the battery’s power is dissipated by the internal resistance?