Engineering, 06.05.2020 08:32 HayleiMae
A voltage of 20 u(t) V, where u(t) is the unit step function, is applied to a circuit consisting of the series combination of a 100 KΩ resistor and a 0.01 µF Capacitor.
a. What is the time constant of the series RC circuit?
b. What will be the values of the voltage across the capacitor and the current through the resistor at 0.5 msec?
c. At what time will the voltage across the resistor be 1.5 V?
d. At what time will the voltage across the capacitor be 8 V?
Answers: 1
Engineering, 03.07.2019 14:10
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
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Engineering, 04.07.2019 18:10
Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk
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Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
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A voltage of 20 u(t) V, where u(t) is the unit step function, is applied to a circuit consisting of...
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