Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
9th Edition
ISBN: 9781259989452
Author: Hayt
Publisher: Mcgraw Hill Publishers
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2.2, Problem 9P
Your rechargeable smartphone battery has a voltage of 3.8 V and capacity of 1.5 mAh. You find that a single battery charge can provide 12 h of talk time, or 10 days of standby time. What is the average power consumption for (a) talk mode and (b) standby mode?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Should You Buy an Electric Car?
Do the math.
This article says that the EPA rating for the Nissan LEAF is exactly 30 kWh per 100 miles
Assume you drive 15,000 miles per year
Assume you pay 7.8 cents per kWh (kilowatt-hour)
Assume your current vehicle gets 32 miles per gallon and gas cost $2.50 per gallon
Which is cheaper to drive, your current vehicle or the Leaf?*
What else should you consider before purchasing an electric vehicle?
Ready to decide? Make an argument for either keeping your current vehicle or for getting an electric vehicle.
Don't have a car? Make an argument for using public transportation and ride-sharing services.
If a PV cell will produce 7-9 watts per square feet, suppose if the rooftop area is 19ftX7 ft then how much power on average it will produce? Also, calculate the energy produced for one year if the effective time of utilisation is 6.5 hours?
Trying to solve this MOSFET exercise but not sure how.(Given Answer : RS: 8.805kohm RD = 12 Kohm)
Chapter 2 Solutions
Loose Leaf for Engineering Circuit Analysis Format: Loose-leaf
Ch. 2.1 - A krypton fluoride laser emits light at a...Ch. 2.1 - A typical incandescent reading lamp runs at 60 W....Ch. 2.2 - In the wire of Fig. 2.7, electrons are moving left...Ch. 2.2 - For the element in Fig. 2.11, v1 = 17 V. Determine...Ch. 2.2 - Prob. 6PCh. 2.2 - Determine the power being generated by the circuit...Ch. 2.2 - Determine the power being delivered to the circuit...Ch. 2.2 - Your rechargeable smartphone battery has a voltage...Ch. 2.3 - Find the power absorbed by each element in the...Ch. 2.4 - Prob. 11P
Ch. 2.4 - Prob. 12PCh. 2.4 - The power absorbed by the resistor if i = 3 nA and...Ch. 2 - Convert the following to engineering notation: (a)...Ch. 2 - Convert the following to engineering notation:...Ch. 2 - Prob. 3ECh. 2 - Prob. 4ECh. 2 - Convert the following to SI units, taking care to...Ch. 2 - Prob. 6ECh. 2 - It takes you approximately 2 hours to finish your...Ch. 2 - A certain krypton fluoride laser generates 15 ns...Ch. 2 - Your recommended daily food intake is 2500 food...Ch. 2 - An electric vehicle is driven by a single motor...Ch. 2 - Under insolation conditions of 500 W/m2 (direct...Ch. 2 - A certain metal oxide nanowire piezoelectricity...Ch. 2 - Assuming a global population of 9 billion people,...Ch. 2 - The total charge flowing out of one end of a small...Ch. 2 - Prob. 15ECh. 2 - The total charge stored on a 1 cm diameter...Ch. 2 - A mysterious device found in a forgotten...Ch. 2 - A new type of device appears to accumulate charge...Ch. 2 - The current flowing through a tungsten-filament...Ch. 2 - The current waveform depicted in Fig. 2.28 is...Ch. 2 - The current waveform depicted in Fig. 2.29 is...Ch. 2 - A wind power system with increasing windspeed has...Ch. 2 - Two metallic terminals protrude from a device. The...Ch. 2 - The convention for voltmeters is to use a black...Ch. 2 - Determine the power absorbed by each of the...Ch. 2 - Determine the power absorbed by each of the...Ch. 2 - Determine the unknown current for the circuit in...Ch. 2 - A constant current of 1 ampere is measured flowing...Ch. 2 - Determine the power supplied by the leftmost...Ch. 2 - The currentvoltage characteristic of a silicon...Ch. 2 - A particular electric utility charges customers...Ch. 2 - The Tilting Windmill Electrical Cooperative LLC...Ch. 2 - A laptop computer consumes an average power of 20...Ch. 2 - You have just installed a rooftop solar...Ch. 2 - Prob. 35ECh. 2 - Some of the ideal sources in the circuit of Fig....Ch. 2 - Prob. 37ECh. 2 - Refer to the circuit represented in Fig. 2.35,...Ch. 2 - Prob. 39ECh. 2 - Prob. 40ECh. 2 - Prob. 41ECh. 2 - Determine the magnitude of the current flowing...Ch. 2 - Real resistors can only be manufactured to a...Ch. 2 - (a) Sketch the current-voltage relationship...Ch. 2 - Prob. 45ECh. 2 - Figure 2.38 depicts the currentvoltage...Ch. 2 - Examine the I-V characteristics in Fig. 2.38....Ch. 2 - Determine the conductance (in siemens) of the...Ch. 2 - Determine the magnitude of the current flowing...Ch. 2 - A 1% tolerance 1 k resistor may in reality have a...Ch. 2 - Utilize the fact that in the circuit of Fig. 2.39,...Ch. 2 - For the circuit in Fig. 2.39, suppose that the...Ch. 2 - For each of the circuits in Fig. 2.40, find the...Ch. 2 - Sketch the power absorbed by a 100 resistor as a...Ch. 2 - You built an android that has a subcircuit...Ch. 2 - Using the data in Table 2.4, calculate the...Ch. 2 - Prob. 58ECh. 2 - Prob. 59ECh. 2 - Prob. 60ECh. 2 - The resistance values in Table 2.4 are calibrated...Ch. 2 - Prob. 62ECh. 2 - Prob. 63ECh. 2 - The network shown in Fig. 2.42 can be used to...Ch. 2 - Prob. 65ECh. 2 - An LED operates at a current of 40 mA, with a...Ch. 2 - You have found a way to directly power your wall...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The hull of a boat has a volume of 150 m3, and the total mass of the boat when empty is 8560 kg. Determine how much load this boat can carry without sinking when (a) in a fresh water lake and (b) in seawater with a specific gravity of 1.0arrow_forwardUnder insolation conditions of 500 W/m2 (direct sunlight), and 10% solar cell efficiency (defined as the ratio of electrical output power to incident solar power), calculate the area required for a photovoltaic (solar cell) array capable of running the above vehicle at half power. Note: The vehicle is driven by a motor of 40 hp.arrow_forwardAn office with 30 m * 15 m is illuminated by 40 W fluorescent lamps of lumen output of 2200 lumens. The average illumination required is 200 lux. Calculate the number of lamps required to be fitted in office. Assume co-efficienct of utilization to be 0.6 and depreciation factor is 1.25.arrow_forward
- There is a thermoelectric power plant with an output of 500 MW, thermal insulation efficiency of 40%, and auxiliary ratio of 5%. If the plant uses heavy oil with a heating value of 9,600 [kcal/l] and operates at an annual utilization rate of 60%, what would the thermal efficiency at the generation transmission line be? solve it correctly please. I will rate accordingly.arrow_forward(6) A battery pack of 30 nickel metal hydride battery modules powers a high performance electric vehicle. Each module has an open circuit voltage of 13 V and an effective resistance of 10 mohm for a 10 second acceleration pulse. What is the peak power capability of this battery pack using the USABC definition (peak power = 2/9 x Voc2/R where Voc is the open circuit voltage and R is the resistance)A. 75 kWB. 113 kWC. 338 kWD. 507 kWarrow_forwarde newly appointed Government of a small island, depend on the import of fossil fuels to produce electricity, has the desire to invest in one or two renewable energy technologies. The advantage of the island is the number of different renewable energy potentials. The cost of electricity on the island is $0.39 kWh. 1) Using solar radiation photovoltaic technologies, it was estimated that 500 rooftops, with a total surface area of 456 000 m2 , will be available to install the photovoltaic panels. Assume that the solar panels actually cover 90% of the available surface area. Given, the size of a standard photovoltaic cell is 156 mm by 156 mm and for a silicon photovoltaic cell, each PV cell produces a current of 2.5 A at a voltage of 0.5 V. The average daily irradiance for the island is 185 W/m2 . Assume the initial capacity expenditure evaluated on a year basis of the photovoltaic system, that covers, 90% of the available surface area is US $600 000 and the annual operating cost is US $5…arrow_forward
- Suppose the cost of an incandescent bulb is 28 cents and that electricity costs 10.5 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination. What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.arrow_forwardQuestions 1-4 relate to a battery pack for the Tesla Roadster EV consisting of 6,831 small cylindrical lithium-ion cells (18650 format). The battery pack has series-parallel arrangement: of 99 cells in series, and 69 strings (series-connected string) in parallel. Assume this battery pack is fabricated from LG 18650 cells and the LG CHEM 18650 Cell Specifications are: Nominal Voltage: 3.7V Capacity: 2800mAh Max Discharging current: 5A (continuous) Size: 18650 (Cylindrical) Length: 65 mm Diameter: 18 mm Weight: 46.5 g Retail Cost: $15.50. What is the specific energy of each cell (Wh/kg)? Q2. What is the battery pack voltage (OCV)? Q 3. What is the battery pack capacity (Ah)? Q4.What is the battery pack energy (kWh)?arrow_forwardExplain, the use of power electronics in the following energy storage systems, use suitable diagrams. SMES Batteries Flywheelarrow_forward
- Classify each of the following asananalog or digital quantity:(a)statusofalightswitch,(b)statusof a thermostat, (c) water pressure, (d) gas tank level, (e) bank overdraft status, (f) light bulb intensity, (g) stereo volume, (h) full or empty cup, (i) room temperature, (j) TV channel selection, and (k) tire pressure.arrow_forwardDesign a battery management system for the rechargeable battery to be used in solar system...Please give the circuit diagram...arrow_forwardAssuming a global population of 9 billion people, each using approximately 100 W of power continuously throughout the day, calculate the total land area that would have to be set aside for photovoltaic power generation, assuming 800 W/m2 of incident solar power and a conversion efficiency (sunlight to electricity) of 10%.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning
Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
What is an electric furnace and how does it work?; Author: Fire & Ice Heating and Air Conditioning Inc;https://www.youtube.com/watch?v=wjAWecPGi0M;License: Standard Youtube License