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    Power dissipated in resistor.

    1. Homework Statement You have a circuit with a single resistor of resistance R connected to a battery that has zero internal resistance and has a power output of 12W. A resistor of resistance of 6R is now connected in parallel to the original resistor. How much power is now dissipated in the...
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    How can I self study a subject effectively?

    There are some classes that are not offered at my university, which I want to self study. How can I self study them effectively to get the same benefit as doing the class at university? There is this class MIT 6.024j Mathematics for Computer Science which I very much want to take online...
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    Potential difference in uniformly charged cylinder

    1. Homework Statement Charge is uniformly distributed with charge density ρ inside a very long cylinder of radius R. Find the potential difference between the surface and the axis of the cylinder. Express your answer in terms of the variables ρ, R, and appropriate constants. 2. Homework...
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    Is complex analysis necessary for electrical engineering?

    I am and EE and CS double major and I am not sure whether to take complex analysis or not. Linear algebra, multivariable calculus, differential equations and probability are compulsory but complex analysis and stochastic processes are optional, so I am wondering whether I should take them or...
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    How is the equation derived?

    1. Homework Statement An infinitely long line of charge has a linear charge density of λ C/m. A proton is at distance d m from the line and is moving directly toward the line with speed v m/s. How close does the proton get to the line of charge? 2. Homework Equations \Delta KE = W = -\Delta...
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    Voltage that brings electron to rest

    1. Homework Statement An electron is moving at 5.4 \times 10^5 ms^(-1) is brought to rest as it enters a region of lower potential. What is the voltage that brought it to rest? 2. Homework Equations \Delta KE=1/2m(v_2)^{2} - 1/2m(v_1)^{2} = W = -\Delta U = q \times \Delta V 3. The Attempt...
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    Electric field strength at the center of an equilateral triangle

    1. Homework Statement 3 rods each of length 1 meter form an equilateral triangle. Two rods have a uniform charge distribution of 8\times 10^{-6} C and the third of -8\times 10^{-6} C. What is the electric field strength at the center of an equilateral triangle 2. Homework Equations \vec{E}...
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