A certain type of D-cell battery that costs $0.50 is capable of producing 1.2 V and a current of 0.1 A for a period of 75 hours. Determine the cost of the energy delivered by this battery per kilowatt hour. (For comparison, the approximate cost of energy purchased from electric utilities in the United States is $0.12 per kilowatt hour.)
A certain type of D-cell battery that costs $0.50 is capable of producing 1.2 V and a current of 0.1 A for a period of 75 hours. Determine the cost of the energy delivered by this battery per kilowatt hour. (For comparison, the approximate cost of energy purchased from electric utilities in the United States is $0.12 per kilowatt hour.)
Solution Summary: The author calculates the cost of the energy delivered by the given battery. The cost per kWh is lCost=0.50.02925
A certain type of D-cell battery that costs $0.50 is capable of producing 1.2 V and a current of 0.1 A for a period of 75 hours. Determine the cost of the energy delivered by this battery per kilowatt hour. (For comparison, the approximate cost of energy purchased from electric utilities in the United States is $0.12 per kilowatt hour.)
(a) For a voltage phasor V(jω) and a current phasor I(jω), give an expression for the complex power.(b)Give three examples of how real (average) power might be dissipated.(c)A time-domain voltage is defined by the expression v(t)= 5 cos(πt/3) V. When this is applied across an impedance Z = 4∠60° Ω, determine:(i)The instantaneous power.(ii)The average power.
Consider the LTI system with the input x(t) = e^28(t) and the impulse response
h(t) = e−²tu(t).
a) Determine the Laplace transform of x(t) and h(t).
(10 marks)
b) Using convolutional property, determine the Laplace transform and the ROC
for the output response y(t).
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