Reference no: EM132326076
Assignment - its problem solving questions with physics and electrical circuit engineering circuit theory, write detailed explanations to circuit stuff.
Questions -
Q1. Derive expressions for the potential at a distance r, in a vacuum, from:
(a) The centre of a uniformly charged sphere, with radius a, and a total charge q, when r ≥ a.
(b) An infinite line charge with uniform charge density λ Cm-1.
(c) An infinite plane with uniform charge density σ Cm-2.
In each case, sketch the field patterns with a constant potential difference between equipotentials.
Q2. The current ic(t) flowing through a 100μF capacitor is shown in Figures (a) and (b). At time t = 0s, the voltage across the capacitor vC(0) = 0 V. Plot the voltage across the capacitor for time between 0 and 4s. Also find the power at time t = 2s i.e., Pc(2), and the stored energy at t = 1s i.e., wc(1).
Q3. A circuit with ideal diodes is shown in Figure below.
i) Draw a Volt-Ampere characteristic using ideal-diode model;
ii) Draw the equivalent circuit assuming that diode D1 is on and diode D2 is off.
iii) Using the ideal-diode model, analyse the circuit by assuming that diode D1 is on and diode D2 is off. Are the results consistent with the model? Provide your reasoning.