#### Quiz V7.0 Electronic and Electrical. 10 Questions. Credits to: MrAl Attempt All Questions. Unanswered questions will be considered Incorrect Use the 'Score' button to show your Score.! You can re-attempt any incorrectly answered Questions and re-check your Score!

 Q9: We have a resistor in series with a capacitor driven by an input step voltage E and taking the output (referenced to ground) from the junction of the capacitor and resistor. The state vector differential equation for this circuit is: x' = E/RC-x/RC (see diagram) where x is the state variable, x' is the time derivative of the state variable, E is the input voltage, RC is the product of the resistor value times the capacitor value. Euler's Method is a technique for solving this equation numerically, and is given by: x[n+1]=x[n]+h*x'[n] (see diagram) where x[n] is the current value of the state variable, x[n+1] is the next solution for the state variable, x'[n] is the time derivative calculated at n, h is the time increment. With R=1k and C=100uf and with the initial state x=0 and using a time increment of 1 millisecond, calculate the value of x (the capacitor voltage) at the time t=10 milliseconds using Euler's Method where E is the unit step forcing function, and approximate the solution to 3 significant decimal places. The value of x (the capacitor voltage) at t=10ms is: 10.5e-3 volts 8.62e-3 volts 10.4e-3 volts 95.6e-3 volts Q9: Marking=
 Q10: In the drawing for the transformer, each winding has the same number of turns and is wound on a lossless core as shown. If the input terminals T1 and T2 are driven with a source with internal impedance equal to 100 ohms, what is the impedance looking into the terminals T3 and T4: 400 ohms, the impedance quadriples 50 ohms, the impedance halves 25 ohms, the impedance is reduced by one quarter Close to 0 ohms, the blue wire connects between the two red wires and shorts out the primary Q10: Marking=