A power transmission line carries 520 A of current at a voltage of 924 kV. If the line has a resistance of 48 u/m, what is the rate at which energy is being dissipated (in kW) over 509 km of line?
Q: Houses in Europe run on 220 V instead of 120 V like here in the US. A circuit in a European house…
A:
Q: One wire in a high-voltage transmission line carries 1 000 A starting at 560 kV for a distance of…
A: P=I2R
Q: Suppose the operating resistance of a flashlight bulb is 2.1 Ω, and is powered by a 1.56 V alkaline…
A: The current :I = 0.711 A The power :P = 1.06 wattsExplanation:Approach to solving the…
Q: The resistance of an electric heater is 70 Ω when connected to 120 V. How much energy does it use…
A:
Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…
A:
Q: A solar cell provides an emf of 0.380 V. If the cell supplies a constant current of 18.0 mA for 9.00…
A: A solar cell provides an emf of 0.380 V. If the cell supplies a constant current of 18.0 mA for 9.00…
Q: The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use…
A:
Q: A 72.3 ohm resistor is put into a circuit with a 13 volt battery. What is the power dissipated (in…
A: Given: The resistance of the circuit is 72.3 Ohm. The supplied voltage is 13 V.
Q: e potential difference across a resting neuron in the human body is about 75.0 mV and carries a…
A: Given data V=75 mV=75×10-3 V Current, I=0.2 mA=0.2×10-3 A
Q: A 50.7 ohm resistor is put into a circuit with a 16 volt battery. What is the power dissipated (in…
A:
Q: 120 W light bulb connected to a 120 V source experiences voltage source that produces 180 V for a…
A: Given that,The power (Pi) = 120 (W)Voltage (V) = 120 (V)Here we need to find by what percentage does…
Q: How many kW of energy does a 650-W toaster use in the morning if it is in operation for a total of…
A:
Q: Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the…
A:
Q: Two 75 W (120V) light bulbs are wired in series, then the combination is connected to a 120 V power…
A:
Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.00 A. Assuming the…
A: Given data: Voltage (V) = 120 V Current (I) = 5.00 A Mass (m) = 0.300 kg Initial temperature (Ti) =…
Q: An electric utility company supplies a customer's house from the main power lines (120 V) with two…
A:
Q: When plugged into a 120 V standard outlet, a current of 2.0 A flows through a string of tree lights…
A: The supplied voltage is The current flow is The number of bulbs in series is
Q: A 1.00-MQ voltmeter is placed in parallel with a 75.0-kQ resistor in a circuit. If the current…
A: Given that,The resistance of the resistor : R1 = 75.0 (kOhm) The resistance of the voltmeter : R2 =…
Q: A 9 V battery costs $1.49, and will run a portable CD player for 6 hours. Suppose the battery…
A: The objective of the question is to calculate the cost of the energy in dollars per kilowatt-hour…
Q: 3. A 2.2 kW stove burner operates on a 240 V household circuit. (a) Calculate the current total the…
A: Given, Power of the stove, P = 2.2 kW potential, V = 240 V
Q: Thermal energy is produced in a resistor at a rate of 100 W when the current is 3.00 A.What is the…
A: Given : rate of thermal energy production = 100 W current, I = 3.0 A Thermal energy…
Q: In an old house, the wires leading to a 120 V outlet have a total resistance of 0.45 Ω . When you…
A:
Q: A 100-ohm load dissipates 400W of power. how much is the voltage and Current across the load?
A: Resistance, R = 100 ohm Power, P = 400 W
Q: ne wire in a high-voltage transmission line carries 1 000 A starting at 460 kV for a distance of 250…
A:
Q: A 205-kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic…
A:
Q: An electric blanket is connected to a 120-V outlet and consumes 350 W of power. What is the…
A: Given data: The voltage of the outlet, V=120V Power consumed by the blanket, P=350W
Q: Thermal energy is produced in a resistor at a rate of 112 W when the current is 3.63 A. What is the…
A:
Q: A capacitor and a resistor are connected in parallel to a 120-V, 60-Hz line. The resistor has a…
A:
Q: An immersion heater has a resistance of 5.0 ohms while drawing a current of 3.0 ampheres. What is…
A: Given data -The Resistance of the immersion heater is given as .The current drawn is given as I = 3…
Q: An electric hot plate has a power output of 2.71 kW when connected to a 93.53 V source. What is the…
A:
Q: 100 MW of power from a power station is transmitted to a distant substation through a cable of…
A:
Q: How much energy does a toaster use if it is rated at 1200 W and runs current for 2 minutes as it…
A:
Q: An electric hot plate has a power output of 1.39 kW when connected to a 90.62 V source. What is the…
A: Given, Power (P)=1390 W Voltage(V) = 90.62 V
Q: A wind farm generates 2,286 kW of electrical power for a nearby community. The transmission wires…
A:
Q: A device experiences a voltage drop of 4.0 V across it while a current of 4.0 mA flows through it.…
A: Given the voltage V and current I for a device, the power dissipated is given by P=VI
Q: An electric hot plate has a power output of 2.9 kW when connected to a 97.96 V source. What is the…
A: Given, Power (P)= 2900 W Voltage(V) = 97.96 V
Q: electric energy costs
A:
Q: he generator at a large power plant has an output of 2,000,000 kW at 23,000 V. (a) If it were a DC…
A:
Q: Given the circuit, where the rate at which R1 is dissipating electrical energy is 20.0 W. When the…
A:
Q: The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it…
A: Resistance of electric heater is R=90 Ω Voltage is V=120 V Time is t=20 min. Note: 1 min.=60 s 1…
Step by step
Solved in 2 steps