Q2: A PMMC(Galvanometer instrument) has a resistance of 10002 and FSD for a current of 400Aμ. A shunt arrangement is shown in order to have an multi-range ammeters(AYRTON). Determine the various ranges to which the ammeter may be switch. Assume the R1-R2-R3-R4-0.0012. PMMC

Challenging Diodes problem I'm stuck on: In the circuit below, Vz = Vz0 = 5 v. rz = 0 and Iz,min = 0. What is the current through the diode, voltage drop measured V1 and is the diode on in each case? a) Vin = -5  b) Vin = 5  c) Vin = 15

4. Determine Vout for the figure below when the types of diodes (Si) and the resistance (R₂) equal 20.2. 1 V 2 V- 3 V + 2 ΚΩ www 2 ΚΩ + V out

Which statement is not true about an extrinsic semiconductor? They do not have equal numbers charge carriers. Their impurities do not affect their electrical behavior. They can be doped with another element by a process known as doping process. They are chemically not pure. Their electrical properties can be tuned.