A 1.59-V mercury cell with a capacity of 2.0 A*h is used to power a cardiac pacemaker. if the power required is 0.3 mW how long will the cell last in hours? (hint: first calculate the average current)

A 1.59-V mercury cell with a capacity of 2.0 A*h is used to power a cardiac pacemaker. if the power required is 0.3 mW how long will the cell last in hours? (hint: first calculate the average current)

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 57PQ

See similar textbooks

Related questions

Q: If a battery is rated at 57.9 A · h, how much total charge can it deliver before it goes "dead"?

A: Given : Battery rating 57.9 Ampere Hr. Required : Total Charge it can deliver before going dead.

Q: The 120 V electric heater in a coffee maker has a resistance of 15 Ω. How long will it take for this…

A: Given: The voltage of electric heater is V=120 V. The resistance of electric heater is R=15 Ω. The…

Q: A current of 5 A flows through an electric heater of resistance 22 Q. The voltage drop across the…

Q: when operated at 120 V. How much charge enters (and leaves) the light bulb in 8.7 min?

A: See solution on next page

Q: The potential difference across a resting neuron in the human body is about 62.0 mV and carries a…

A: Given Information:- Potential difference across a human neuron in the human body is V=62…

Q: The electric oven in your kitchen is plugged into a 240.0V out and it draws a 19.5 A current. If you…

A: Potential difference = 240 V Current = 19.5 A Time = 30 mins = 1800 seconds

Q: A battery of 9V is connected in series with resistors of 0.2Ω, 0.3Ω, 0.4Ω ,0.5Ω and 12 Ω,…

Q: What current flows through a 2.45-cm-diameter rod of pure silicon that is 21.5 cm long, when 1.00 x…

A: Given: The diameter of the wire is 2.45 cm. The length of the wire is 21.5 cm. The potential…

Q: The resistance of an electric heater is 90 Ω when connected to 120 V. How much energy does it use…

Q: A 1.60×103 watt iron is connected to a 1.20×102 volt line and is operated for 2.75 hours. What is…

Q: A rechargeable battery is labeled for 12 V and 1600 mAh*. How much charge can the battery supply at…

Q: A lightbulb designed to operate in a 48.0 V circuit has a resistance of 237 Q. At what rate (in…

Q: A 1.5 V D-size battery stores 54 kJ of energy. What steady current could this battery provide for 20…

A: Given data: emf of D-size battery is V=1.5 V Energy stored in the battery is E=54 kJ=54×103J Time…

Q: A light bulb operating at 110 V draws 1.20 A of current. What is its resistance? 109 Q 78.6 Q 154 Q…

A: Given data: Voltage (V) = 110 V Current (I) = 1.20 A Required: Resistance (R)

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 5.50 A. Assuming the…

Q: You have a battery marked "6.00 V." When you draw a current of 0.329 A from it, the potential…

Q: only. A cen of emf 1.5 V gives a current of 15 A when connected directly to an ammeter of 0.04 Sa…

Q: What is the power of a 1.00×102 MV lightning bolt having a current of 2.00 × 104 A ?

A: Given- V = 1.00 x 102 MV =1.00 x 108 V I = 2.00 x 104 A

Q: A battery has a total charge capacity of 10 800 C. For how long can this battery deliver a current…

A: Data Given:- Charge capacity of the battery is Q=10800 C Current is i=450 mA ⇒i=450 mA×1 A1000 mA…

Q: The potential difference across a resting neuron in the human body is about 150.0 mV and carries a…

Q: An incandescent light bulb is rated at 42.5 W when operated at 99.7 V. How much charge (in C) passes…

Q: A power plant supplies a current of 4.80 x 10 A at 545 k V. After being transmitted down a few…

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 2.50 A. Assuming the…

A: Given data The operating voltage of a coffee maker is V = 120 V. The current carried by the coffee I…

Q: The recovery time of a hot water heater is the time required to heat all the water in the unit to…

Q: The potential difference across a resting neuron in the human body is about 83.0 mv and carries a…

Q: The largest number of 100 W electric light bulbs which can be operated from a 240 V supply fitted…

A: Given100 W electric bulbsVoltage=240 VMaximum possible Current (I)= 13 A

Q: A car owner forgets to turn off the headlights of his car while itis parked in his garage. If the…

A: Since there is two 2 headlights the total power is 72W

Q: Appliances that require a lot of power, such as a dryer or a stove, typically run on 240 V, and…

A: Given: Initial Power, P1 = 4461 W Initial Voltage, V1 = 240 V Final Voltage, V2 = 120 V To…

Q: A 500-W heating coil designed to operate from 110 V is made of Nichrome wire 0.500 mm in diameter.…

A: Power of heating coil (P) = 500 W Operating voltage (V) = 110 volts diameter (d) = 0.5 mm Radius (r)…

Q: A typical AAA battery can move 2000 C of charge at 1.5 V. How long will this run a 50 mW LED? a.…

A: Voltage, V = 1.5 V charge, q = 2000 C Power, P = 50 mW

Q: A 27 Ω component is connected to a 12 V battery. How much energy is expended per second?

A: Energy expended per second is the power itself. P=V2R

Q: What current flows through a 2.58-cm-diameter rod of pure silicon that is 19.0 cm long, when 1.00 ✕…

A: According to question--- Given values--- diameter = 2.58 cm. length of rod = 19 cm. voltage = 103…

Q: A heater is being designed that uses a coil of 14-gauge nichrome wire to generate 300 W using a…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Let the power is given by P. Let the time is given by t. Let the charge is given by Q. Let the…

Q: The potential difference across a resting neuron in the human body is about 63.0 mV and carries a…

Q: What current flows through a 2.54-cm-diameter rod of pure silicon that is 20.0 cm long, when 1.00 ×…

A: According to ohms law the current of the rod is I=VR Here, R is the resistance,V is the voltage, I…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Answer b. 42.00

Q: What is the rate of the flashlight’s energy consumption, in watts, if it operates at a voltage of…

A: Rate of energy consumption is called Power. Power of flash light can be given as: P=VI Current…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: power of a bulb P = VI And we know that current is flow of electron in per unit time I = q /t…

Q: The resistance of an electric heater is 20N when connected to 120 V. How much energy does it use…

Q: How many volts are supplied to operate an indicator light on a DVD player that has a resistance of…

Q: A practical battery supplies a current of 5 A with a terminal voltage of 15 V. When being charged…

Q: a copper wire is 2.50m long and has a diameter of 2.5 mm. How much current will it draw when…

A: Given data: A copper wire Length (L) = 2.50 m Diameter (d) = 2.5 mm = 2.5×10-3 m Voltage (V) = 3.5…

Q: The potential difference across a resting neuron in the human body is about 76.0 mV and carries a…

A: The potential difference across a resting neuron in the human body is V = 76.0 mV = 76.0x10-3 V. The…

Q: You have a battery marked "6.00 V." When you draw a current of 0.399 A from it, the potential…

A: Emf of battery ε == 6.00 V Current drawn from the battery I = 0.399 A potential difference for this…

Q: ugh the bulb of a 2.

A: GivenV=2.97 VR=3.58 Ω

Q: If a battery is rated at 60.0 A · h, how much total charge can it deliver before it goes “dead”?

A: Given data The rating of the battery is: I x t = 60 A.h The…

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Average current

VIEW

Time for which the cell will last

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

Integrated Concepts (a) What energy is dissipated by a lightning bolt having a 20,000-A current, a voltage of 1.00102 MV, and a length of 1.00 ms? (b) What mass of tree sap could be raised from 18.0°C to its boiling point and then evaporated by this energy, assuming sap has the same thermal characteristics as water?
What is the output voltage of a 3.00-V lithium cell in a digital wristwatch that draws 0.660 mA, if the cell's internal resistance is 2.15 Ω? (Enter your answer to at least five significant figures.)V
Each of the six real batteries in the figure has an emf of 18.6 V and a resistance of 3.89 0. (a) What is the current through the (external) resistance R=3.5102? (b) What is the potential difference across each battery? (c) What is the power of each battery? (d) At what rate does each battery transfer energy to internal thermal energy? (a) Number IM (b) Number i MI (c) Number i IM (d) Number i Units A Units V Units W Units W R > <
A 12.0 V emf automobile battery has a terminal voltage of 16.8 V when being charged by a current of 11.0 A. (a) What is the battery's internal resistance (in N)? 0.4364 (b) What power (in W) is dissipated inside the battery? 52.8 W (c) At what rate (in °C/min) will its temperature increase if its mass is 20.0 kg and it has a specific heat of 0.380 kcal/(kg · °C), assuming no heat escapes? 0.99723 °C/min
. Electric currents in excess of 10 mA (0.01 A) can produce painful shocks. Currents exceeding 100 mA (0.1 A) can be fatal. If a wet human has a resistance of 1700 Ω, and the household voltage is 110 V, what current can potentially flow through the human? Give your answer in decimal notation, to two significant figures with the units. Ohm’s law: Calculations: Answer:
What is the output voltage (in V) of a 3.0000 V lithium cell in a digital wristwatch that draws 0.350 mA, if the cell's internal resistance is 2.05 Ω?
A battery having a voltage of 3.00 V is connected through a rheostat to a uniform wire 100 cm long. The wire has a resistance of the rheostat be in order that the voltage per millimeter of the wire shall be exactly 1 mV?
A portable coffee heater supplies a potential difference of 12.0 V across a Nichrome heating element with a resistance of 1.67 Ω. (a). Calculate the power (in W) consumed by the heater. (b) How many minutes would it take to heat 1.43 kg of coffee from 20.6°C to 45.2°C with this heater? Coffee has a specific heat of 4184 J/(kg*C°). Neglect any energy losses to the environment.
Each of the six real batteries in the figure has an emf of 18.6 V and a resistance of 3.89 0. (a) What is the current through the (external) resistance R=3.51 Q? (b) What is the potential difference across each battery? (c) What is the power of each battery? (d) At what rate does each battery transfer energy to internal thermal energy? (a) Number (b) Number (c) Number (d) Number M. P rod Units A Units V Units W Units W R >
A rechargeable battery is labeled for 12 V and 1600 mAh*. How much charge can the battery supply at its rated voltage before needing a recharge? Give your answer in units of kC. *mAh stands for "milliAmp-hours," or 1x10-3 A * 1h.
The potential difference across a resting neuron in the human body is about 75.0 mV and carries a current of about 0.200 mA. How much power does the neuron release?
The current flow through a resistor is 0.150 A when 4.0 V is applied. What voltage is needed for 0.450 A?