b) The unknown resistance is determined by Wheatstone bridge and is given by Rx = R. where R; = 90 = 0.5% 2 R; = 900 = 0.8% 2 R; = 825 = 0.6% 2 Determine the magnitude of the resistance and the limiting error in % and ohms for the unknown resistance R.

In the circuit shown below, if VA= 1V and V-2V, the statuses of the diodes are (Assuming ideal diodes) D₁ VA V₂₁ D₂ ERL Vout Select one: O a D₂ is ON, D₂ is ON O b. None of these Oc. Dy is OFF, D₂ is ON O d. Dy is ON, D₂ is OFF

From the diode circuit shown below, If E=30 V and RL=802, determine the current supplied from the battery, the voltage across the load resistance, and the voltage across diode D2 if all the diodes are silicon with an internal resistance of 1 2. D . RL D4 D3 a. The Current supplied by battery is b. The Voltage across Load resistance RL is c. The Voltage across diode D2 is

3. In the following circuits, given source voltage Vs=9V, R1, R2 and R3 all are 1kOhms. Answer the questions by considering the diodes as ideal and practical silicon ones respectively. Vs Vs Vs R2 R2 R2 Vout P D R1 R1 R3 R1 (a) Vout = ? (b) Vp = ? (c) Vp = ? Note: Vp means the voltage at point p. w

Construct a forward bias diode circuit in multi-sim (desktop, not live). Simulate and find the current through the resistor and the voltage across the resistor.

The circuit below has a variable voltage vin as its input. We are interested in Vout as a function of Vin. In other words, if we vary the value of the voltage source vin, what will be the effect on the voltage Vout? The steps below will help you to investigate this question, and your answers will form the basis for a new design. Assume that the diode can be sufficiently modelled as simple diode with forward voltage of 0.7 V (you do not need Shockley's equation). Vin 100Ω M Vf = 0.7 V 2 V V out