Recent content by MorrowUoN

  1. M

    Help with two pointer problems in C.

    So basically after that line y just points to the next available memory location?
  2. M

    Help with two pointer problems in C.

    I believe this to be correct: *y++ = *(y++) The precedence table I looked at had ++ above unary *. I'm having trouble with this *(y++) = 0x1000 due to never seeing anything like it before. This is what I think it does although I could be wrong. it sets *y = 0x1000 therefore...
  3. M

    Help with two pointer problems in C.

    For the first question I got: y=0x1001 and x= 0x1000 My logic for this was y is pointing to the address of x and since y++ is post increment it sets x to 0x1000 and then y increments and becomes 0x1001.Also these questions are from a sample final exam for which we haven't been given the...
  4. M

    Help with two pointer problems in C.

    What is the value of x after the following C code sequence? Discuss the value of y. int x = 0x1201, *y; y = &x; *y++ = 0x1000; Analyse the following code and provide the values of the elements of the array x after the code is executed. int x[] =...
  5. M

    Space charge width pn junction

    What is the value of epsilon in the formula attached?
  6. M

    Space charge width pn junction

    Homework Statement Calculate the width of the space charge region in a pn junction when a reverse biased voltage is applied. Consider a silicon pn junction at T=300K with doping concentrations of Na=10^16 cm^-3 and Nd=10^15 cm-3. Assume that Ni=1.5*10^10 cm-3 and VR=5V Homework Equations...
  7. M

    Magnitude of magnetic flux of a solenoid using Biot-Savart law

    The notes have this formula for calculating the sin and cos term however, I am not sure which details are x, R and l from the question. I guess it doesn't hurt to hazard a guess, would l be the length, R the radius (with diameter given in this case) and x be the distance of point P from the...
  8. M

    Magnitude of magnetic flux of a solenoid using Biot-Savart law

    Homework Statement A 10 cm long, 1 cm diameter solenoid contains 500 turns of wire. A current that varies as I = 5Sin(100πt) Amps flows through the solenoid wire. Calculate the magnitude of the magnetic flux at the centre of the solenoid as a function of time using equation (1). Compare this...
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