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  1. Kurtis McIntosh

    Engineering Circuits Question -- Charging a car battery in 4 hours...

    That was a mistake haha. I know it should be I = dq/dt. My brain was just moving too quick for my fingers to comprehend and type the information!
  2. Kurtis McIntosh

    Engineering Circuits Question -- Charging a car battery in 4 hours...

    Oh okay! I never thought of work as Volt*Amps*Second. That makes a lot of sense. Thanks!
  3. Kurtis McIntosh

    Engineering Circuits Question -- Charging a car battery in 4 hours...

    Ah I see, but where would I go from there? I feel like I'm still missing something since when using a similar form to the integral I have set up above. I still get answers that are to the 11th power of 10 versus where they should be around the 5th power of 10.
  4. Kurtis McIntosh

    Engineering Circuits Question -- Charging a car battery in 4 hours...

    I'll try as best as I can using a computer. (A) q(t) = int(3 dt) from 0 - 14400 s. q(t) = 3t| from 0 - 14400 s q(t) = 43.2 kC (B) V = (10 + 1/2t) x (60 min/hr) x (60 sec/min) = 36000 + 1800t P = IV = 3(36000 + 1800t) = 5400t + 108000 W = int(5400t + 108000 dt) from 0 -...
  5. Kurtis McIntosh

    Engineering Circuits Question -- Charging a car battery in 4 hours...

    Homework Statement A constant current of 3A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10 + 1/2 t V, where t is in hours, (a) how much charge is transported as a result of the charging? (b) how much energy is expended? (c) how much does the charging...
  6. Kurtis McIntosh

    Net Electric Flux for a Cube

    Homework Statement Assume the magnitude of the electric field on each face of the cube of edge L = 1.07 m in the figure below is uniform and the directions of the fields on each face are as indicated. (Take E1 = 35.1 N/C and E2 = 25.3 N/C.) A.) Find the net electric flux through the cube. B.)...
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