A generator produces 210 kW of electric power at 7.2 kV. The current is transmitted to a remote village through wires with a total resistance of 152. Part A What is the power loss due to resistance in the wires? Express your answer with the appropriate units. P= Submit Part B Value P= Request Answer What is the power loss if the voltage is increased to 30 kV? Express your answer with the appropriate units. Units Value Units
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- Please help me with this physics labA power plant needs to generate Po= 340MW of power for a city 10km away. The city power outlets need to operate at 120V. Part A One idea might be to run the power lines at 120V so homes can directly tap into the power lines. What is the current needed to do this? (Hint: use P-IV). |VD ΑΣΦ ? |= Amps Submit Request Answer Part B The power lines have a resistance of 0.2 0/km. What are the ohm-ic losses (L.e. the power dissipated via resistance) in the power lines to transport the energy from the power plant to the city if we use the current from 1²R part (a)? (HINT: compute the total resistance of the power lines and then use P VG ΑΣΦ 5 A W P=Draw the circuit and solve. Two resistances of 10 Ω and 15 Ω, respectively are connected in parallel. The two are then connected in series with a 5 Ω resistance. If the entire combination is connected across a 12 V. battery, find the total current.
- In the RC (series) circuit, R = 1.2 M2 and C = 5.00 µF. It is connected to a 30 volt power source with a www- R switch S. What is the current in the circuit when the capacitor reaches 25 volts? b. 4.17 µA 2.12 μΑ c. 9.3 μΑ 12.4 HAFour resistors, R = 12 N, R2 = 15 N, R3 = 10 N and R4 = 8 N are connected such that the series combination of R, and R2 is connected in parallel with the series combination of R3 and R4. The combination is then connected across a 12 V DC power supply. A. Draw the schematic diagram and label the circuit elements. B. Calculate the equivalent resistance of the circuit. C. Find the total current of the circuit, the voltage across each resistor and the current through each resistor.A capacitor that is initially uncharged is connected in series with a resistor and a 400.0 V emf source with negligible internal resistance. Just after the circuit is completed, the current through the resistor is 0.800 mA and the time constant for the circuit is 6.00 s. ▼ Part A What is the resistance of the resistor? Express your answer with the appropriate units. R = Submit Part B C = Value Submit What is the capacitance of the capacitor? Express your answer with the appropriate units. Request Answer 0 Value Units Request Answer Units ? ?
- A starter motor on a motorcycle has an equivalent resistance of 0.15 Ω and is supplied by a 12 V battery with a 0.012 Ω internal resistance. What is the current going to the starter motor? I = AConsider the circuit shown in the figure. Suppose the four resistors in this circuit have the values R1 = 12 Ω, R2 = 7.1 Ω , R3 = 7.1 Ω, and R4 = 13 Ω, and that the emf of the battery is ε = 18 V. Find the current through each resistor and the power dissipated in the circuit.Consider the following circuit diagram. The potential difference across the battery is 40.0 volts, and it supplies a current of 5.00 amperes to the circuit. There is a current of of 2.70 amperes flowing through R1. Resistor R2 has a resistance of 5.50 ohms. What is the resistance of R3? Answer in ohms to two decimal places, but do not include units in your answer.
- A combination of three resistors R1 , R2 and R3 in series is connected across a voltage source VT. The voltage drop across R2 and R3 are 13 V and 29 V, respectively. If the current supplied by the source voltage is 1.5 A and the total power supplied by the source is 90 W, Calculate the following: A. The value of VT and the voltage drop across R1. B. The equivalent resistance of the combination of R1 , R2 and R3 C. The values of R1 , R2 and R3 D. The power dissipated by each resistorA student calculates the total potential difference of a circuit given the total current and total resistance for the circuit. The student works a new version of the question where the power has been changed by a factor of 0.693. Determine the factor by which the answer would change. 0.693 It does not change or it does not make sense to calculate given this information. 0.480 1.443In the picture below there are 2 electromotive force with a large voltage of 12.5 V and an internal resistance of 0.75 Ohm arranged in series. Furthermore, the circuit with a series of resistance as shown in the picture. EJ & R₁=852 B R=1602 ·m R$40 R₂=1602 mmm. R₁=802 Calculate : a. The total resistance of the circuit. b. Strong current generated www.