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if the series resistor of prob 5-1 has a tolerance of plusmn5 percent what is the maximum zener currentprob 5-1an
1 draw the schematic diagram of a zener regulator with a supply voltage of 20 v a series resistance of 330 a zener
during the day the ac line voltage changes this causes the unregulated 24-v output of the power supply to vary from 215
figure 5-47 shows part of a bicycle lighting system the diodes are schottky diodes use the second approximation to
in fig 5-45 the led does not light which of the following are possible troublesa v130la2 is openb ground between two
1 if the lead temperature of a 1n4736a zener diode rises to 100degc what is the diodes new power rating2 in fig 5-44
1 a zener diode has a voltage of 10 v and a current of 20 ma what is the power dissipation2 a 1n5250b has 5 ma through
the unregulated voltage in fig 5-44 may vary from 18 to 25 v and the load current may vary from 1 to 25 ma will the
in fig 5-44 the unregulated voltage out of the power supply may vary from 20 to 26 v and the load resistance may vary
assume the supply voltage of fig 5-44 decreases from 24 to 0 v at some point along the way the zener diode will stop
for the boolean functiona obtain the truth table of fb draw the logic diagram using the original boolean expressionc
1 calculate the value of the gibbs function for saturated steam at 500degf as a saturated liquid saturated vapor and a
a liquid-vapor mixture of refrigerant-134a is at 280 kpa with a quality of 70 percent determine the value of the gibbs
1 using solubility data of a gas in a solid explain how you would determine the molar concentration of the gas in the
1 water is sprayed into air at 80degf and 143 psia and the falling water droplets are collected in a container on the
water vapor h2o is heated during a steady-flow process at 1 atm from 298 to 3000 k at a rate of 02 kgmin determine the
1 consider a tank that contains a saturated liquid- vapor mixture of water in equilibrium some vapor is now allowed to
solid carbon at 25degc is burned with a stoichiometric amount of air which is at 1 atm pressure and 25degc determine
gaseous octane is burned with 40 percent excess air in an automobile engine during combustion the pressure is 600 psia
1 consider a glass of water in a room at 27degc and 97 kpa if the relative humidity in the room is 100 percent and the
foam products such as shaving cream are made by liquid mixtures whose ingredients are primarily water and a refrigerant
an ammonia-water absorption refrigeration unit operates its absorber at 0degc and its generator at 46degc the vapor
in absorption refrigeration systems a two-phase equilibrium mixture of liquid ammonia nh3 and water h2o is frequently
1 a wall made of natural rubber separates o2 and n2 gases at 25degc and 500 kpa determine the molar concentrations of
what is the total mass of the liquid phase of prob 16-73prob 16-73an oxygen-nitrogen mixture consists of 30 kg of