Occupational safety experts have developed an alternative criterion for electrical safety. They have found that shocks lasting less than 3 s will be nonlethal if the product of the voltage drop across the body, the current through the body, and the time (<3.0 s) that the current flows does not exceed 13.5 V As = 13.5 J. Suppose that one hand of a potential victim is grounded and the other hand touches a voltage source; suppose further that his skin resistance is negligible a worst-case scenario. Using the criterion above, what is the lowest voltage that will not be lethal for a shock that lasts 1.0 s?

Occupational safety experts have developed an alternative criterion for electrical safety. They have found that shocks lasting less than 3 s will be nonlethal if the product of the voltage drop across the body, the current through the body, and the time (<3.0 s) that the current flows does not exceed 13.5 V As = 13.5 J. Suppose that one hand of a potential victim is grounded and the other hand touches a voltage source; suppose further that his skin resistance is negligible a worst-case scenario. Using the criterion above, what is the lowest voltage that will not be lethal for a shock that lasts 1.0 s?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: A person notices a mild shock if the current along a path through the thumb and index finger exceeds…

A: V = IR

Q: Consider the circuit shown in the figure. A short time after closing the switch, the charge on the…

A: Let initial charge be Q and charge on the capacitor after t seconds is q.q = 80% of QTime constant,…

Q: Electrical energy is converted to heat at the rate of 7.56kJ/min in a resistor which has 270 C/min…

A: Given: The rate of heat energy across the resistor is 7.56 kJ/min. The rate of the charge is 270…

Q: A potential difference of 1.00 V is maintained across a 10.0-0 resistor for a period of 20.0 s. What…

A: Solution:-Given thatPotential difference (V)=1 VResistance (R)=10 ohmtime (t)=20 s

Q: A charged capacitor is connected to a resistor and a switch as in the figure below. The circuit has…

A: Given that The time constant of the circuit is (T) = 2.5s The charge on the…

Q: A heart pacemaker fires 88 times a minute, each time a 29.5 nF capacitor is charged (by a battery in…

Q: A DC battery provides a constant current of I= 63mA. Assume the battery started with a voltage of…

Q: A series circuit is comprised of a 200VDC battery, a switch, a 1 MΩ resistor and a 10 µF capacitor.…

Q: A heart defibrillator being used on a patient has an RC time constant of 11.0 ms due to the…

Q: (a) A well-insulated electric water heater warms 125 kg of water from 20.0°C to 53.0°C in 33.0 min.…

Q: What is the smallest capacitor needed in a computer power supply in order to supply at least 0.1 A…

A: At least current is given by as I = 0.1 A.Time is given as t = 0.13 sec.Resistance Supply voltage V…

Q: In the figure ɛ1 = 3.36 V, E2 = 0.828 V, R1 = 4.16 2, R2 = 2.09 2, R3 = 4.19 2, and both batteries…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: 1. (a) A defibrillator (a device that stores charge on a capacitor used to start the heart beat of a…

Q: An initially uncharged 5.26x10^-4 capacitor is connected to a 6.65x10^5 Ohm resistor in series. A…

A: Given C = 5.26×10-4 F Resistance R = 6.65×105 ohm voltage V = 10.6 volt we have to find out time…

Q: A charged capacitor is connected to a resistor and a switch as in the figure below. The circuit has…

Q: An uncharged capacitor is connected in series with a battery and a resistor. In terms of the time…

Q: A defibrillator is designed to pass a large current through a patient’s torso in order to stop…

A: The above problem is based on discharging of the capacitor. At t=0 s, when the switch closes, the…

Q: Consider a circuit with an external voltage of ΔU = 3V in which two resistors, with R1 = 65Ω and R2…

Q: In the figure &₁=2.97 V, 82 -0.938 V. R₁ = 4.44 02, R₂ = 2.110, R3-3.710, and both batteries are…

Q: A solar cell generates a potential difference of 0.17 V when a 550 Q2 resistor is connected across…

Q: R₁ Rs R₁₂ In the figure ε₁ = 3.74 V, 2 = 0.900 V, R₁ = 6.13 2, R2 = 2.35 2, R3 = 4.80 02, and both…

A: Step 1:Step 2:Step 3:Step 4:

Q: What is the smallest capacitor needed in a computer power supply in order to produce at least 3.75 V…

Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

Question

4. Occupational safety experts have developed an alternative criterion for electrical safety. They
have found that shocks lasting less than 3 s will be nonlethal if the product of the voltage
drop across the body, the current through the body, and the time (<3.0 s) that the current
flows does not exceed 13.5 V As = 13.5 J. Suppose that one hand of a potential victim is
grounded and the other hand touches a voltage source; suppose further that his skin resistance
is negligible a worst-case scenario. Using the criterion above, what is the lowest voltage that
will not be lethal for a shock that lasts 1.0 s?

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

Step 1

VIEW

Step 2

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

A heart defibrillator being used on a patient has an RC time constant of 11 ms due to the resistance of the patient's body and the capacitance of the defibrillator. t = 11 ms C = 8.5 uF V = 14 kV (b) If the initial voltage is 14 kV, how long does it take to decline to 6.00 x 10^2 V in ms?
A charged capacitor is connected to a resistor and a switch as in the figure below. The circuit has a time constant of 2.45 s. Soon after the switch is closed, the charge on the capacitor is 50.0% of its initial charge. + Q те R (a) Find the time interval required for the capacitor to reach this charge. S (b) If R = 230 k, what is the value of C? C = μF
A 1000.0 Ω resistor is placed in series with two 100.0 μF capacitors in series and the combination is connected to a battery. Determine the time constant of the circuit.
Please Asap
In the circuit shown in the figure, the S switch closed at t=0 and the capacitors, which are completely empty, begin to fill. Here ε=10 V, C=5 μF and R=55 Ω. What is the time constant of the circuit, τ, in units of microseconds? When t= τ, what is the total charge, in units of microcoulomb, accumulated in the capacitors?
A capacitor of capacitance C = 4.5 uF is initially uncharged. It is connected in series with a switch of negligible resistance, a resistor of resistance R = 8.5 kOhm, and a battery which provides a potential difference of VB = 105V. (a) Calculate the time constant t for the circuit in seconds. (b) After a very long time after the switch has been closed, what is the voltage drop VC across the capacitor in terms of VB? (c) Calculate the charge Q on the capacitor a very long time after the switch has been closed in C. (d) Calculate the current I a very long time after the switch has been closed in A. (e) Calculate the time t after which the current through the resistor in one-third of its maximum value in s. (f) Calculate the cahrge Q on the capacitor when the current in the resistor equals one third its maximum value in C.
While taking a bath, a person touches the metal case of a radio. The path through the person to the drainpipe and ground has a resistance of 4000 Ω . What is the smallest voltage on the case of the radio that could cause ventricular fibrillation?