

Logic Gates - Technical MCQs
Q1: The power dissipation, PD, of a logic gate is the product of the ________.A dc supply voltage and the peak current
B dc supply voltage and the average supply current
C ac supply voltage and the peak current
D ac supply voltage and the average supply current
ANS:B - dc supply voltage and the average supply current Power Dissipation is an important metric for two reasons. Amount of current and power available in a battery is nearly constant. Power dissipation of a circuit or system defines battery life, The greater the power dissipation, the shorter the battery life. Power dissipation is proportional to the heat generated by the chip or system, Excessive heat dissipation may increase operating temperature and cause gate circuitry to drift out of its normal operating range, will cause gates to generate improper output values. Thus power dissipation of any gate implementation must be kept as low as possible. |


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