A 7.4 A current is maintained in a simple circuit with a total resistance of 12.8 Ω. How much energy (in kJ) is delivered in 42 seconds [round your final answer to one decimal place]?
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A 7.4 A current is maintained in a simple circuit with a total resistance of 12.8 Ω. How much energy (in kJ) is delivered in 42 seconds [round your final answer to one decimal place]?
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- A 3.31 volt potential difference is placed across a 1,957.08 ohm resistor. How many electrons pass through the resistor in 3.36 seconds? (e = 1.602x10-19 C)Consider the circuit shown below. (a)Determine the equivalent resistance and the current from the battery with switch ?1 open. (b) Determine the equivalent resistance and the current from the battery with switch ?1closed.Three resistors rated at 15 kΩ, 25 kΩ, and 8.1 kΩ are connected in parallel in a circuit. What is the equivalent resistance (in kΩ) of this combination of resistors [round your final answer to one decimal place]?
- The circuit shown in the figure below is connected for 3.30 min. (Assume R, = 8.80 2, R2 = 1.80 N, and V = 15.0 V.) 5.00 N 3.00 R2 1.00 N R -4.00 V V -T (a) Determine the current in each branch of the circuit. branch magnitude (A) direction 7.66 Your response differs from the correct answer by more than 100%. left branch down middle branch down right branch up (b) Find the energy delivered by each battery. 3397.68 4.00 V battery If you know the current through a battery, how do you determine the power delivered by the battery? J 15.0 V battery kJ(a) What is the cost (in $) of heating a hot tub containing 1590 kg of water from 10.0°C to 40.0°C, assuming 75.0% efficiency to account for heat transfer to the surroundings? The cost of electricity is 9.00 cents/(kW · h). $ (b) What current (in A) was used by the 220 V AC electric heater, if this took 4.20 h? AThree resistors rated at 17 kΩ, 24 kΩ, and 4.7 kΩ are connected in parallel in a circuit. What is the equivalent resistance (in kΩ) of this combination of resistors [round your final answer to one decimal place]?