Electric potential

CHAPTER 2 2.1 ELECTROCARDIOGRAM The ECG Signal is a graphical representation of the electromechanical activity of system. The various propagation action potentials within the heart produce a current flow, which generates an electrical field that can be detected, in significantly attenuated form, at the body surface, via a differential voltage measurement system. The resulting measurement, when taken with electrodes in standardized locations, is known as the electrocardiogram. The ECG signal is…

battery is lost, the disposal of the lead within the battery must be dealt with appropriately. An analysis by researchers at Carnegie-Mellon found that the mass production of electric cars using lead/acid battery packs would exponentially increase the public’s exposure to lead pollution (Peters, 1995). According to the study, electric cars would create more than 60 times the amount of lead pollution as compared to vehicles burning leaded gasoline (Peters, 1995). In addition to problems…

stable one, while tritium has a half-life of roughly twelve years, making it slightly radioactive (Unterweger et al.; Wanjek). However, tritium has a higher binding energy than deuterium making it a more efficient fuel (Watkins). The deuterium-tritium reaction has a yield of roughly 17.6 MeV whereas the deuterium-deuterium reaction only has a yield of about 3.65 MeV. Still, the DT reaction has its disadvantages. For one, in the DT reaction about 80% of the energy is stored in a high-energy…

relationship between electric current, voltage, and resistance. The ohm’s law was named after the German physicist Georg Ohm who discovered this rule or law. Ohm’s law statement Ohm’s law states that the electric current flowing through a conductor is directly proportional to the voltage and inversely proportional to the resistance. In other words, the electric current flowing through the conductor increases with increase in applied voltage (If resistance is not changed) and the electric…

new energy storage technologies. It aggregated those vehicles with battery (Hybrid electric vehicles, battery electric vehicles, and plug- in hybrid electric vehicles) into the grid as a distributed resource of energy load, storage and generation device. It is not only adding the ability to deliver power from vehicle to the grid, but also can apply the power flow (Lund & Kempton, 2008). V2G technology provides potential solutions to energy storage and stabilization. It can benefit in peak load…

uppercase letter I. Potential difference The potential difference between two points.The units for potential difference are Joules per coulomb, or volts. (1 volt = 1 Joule/coulomb). Electrical charge Electric charge is carried by the electrons ( negative charge) and protons (positive charge) within an atom. The symbol for the electrical charge is Q. Resistance The symbol for the resistance is ohm Ω and as the ratio of the voltage applied to the electric current ,which…

intercellular communication through changes in membrane potential and synaptic connections” [5] where as a glial cell is a support cell that surrounds and insulates some structures of the neuron. This essay is mainly going to focus in detail on neurons, their basic structure and how they communicate. It is going to explore how an electrical signal is passed on…

Amyotrophic Lateral Sclerosis Neurologist Jean-Martin Charcot in 1869 discovered Amyotrophic Lateral Sclerosis (The ALS Association, 2015). ALS is more commonly referred to as Lou Gehrig’s disease after Lou Gehrig, a great American baseball player whose career unfortunately ended abruptly due to this incurable degenerative disease. ALS is the deterioration of motor neurons in the brain and spinal cord that leads to muscle weakness. This significant decrease in muscle strength eventually…

My phone is sitting next to me on my desk when I hear it begin to ring. I pick it up in my hand and look at the screen to see who is calling me. When I recognize my mother’s caller ID, I tap a button to accept the call. I bring the phone to my ear and hear my mother’s voice through the speaker. We talk for a few minutes, and then eventually we say goodbye. I end the call and place the phone back onto my desk. The body system that enables me to successfully complete this phone call is the…

The interactions with the taste receptor cells will produce an action potential that will induce an action potential in taste sensory neurons. A neuron has 3 main parts: the dendrite, the cell body, and the axon. Information will be able to move faster in bigger and myelinated axons. In sensory neurons, the action potential is trigger at the dendrite. Each neuron has a cell membrane that encloses each neuron. The cell membrane is semi-permeable…