EENG342 Electronics II/Page 2 Q.1 (a) The operational amplifier in the circuit in Figure QI(a) is ideal. Find va R, E (a) Figure Q1(a) (b) If V = 10 mV, find the output voltage Vo for the amplifier shown in Figure QI(b). Assume ideal opan Vio Yo R Figure Q1(b) (c) For the circuit shown in Figure QI(c) assume an ideal opamp and find Vo. R, Figure Q1(c)

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HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.