In order for charge to flow, there must be a potential difference present across a conductor. This difference in electric potential creates an electric field that drives the movement of charge through the material.
In electricity, voltage is analogous to water pressure. Just as water pressure drives water through pipes, voltage drives electric current through a circuit. Higher voltage means a greater potential for current to flow, similar to how higher water pressure results in a stronger flow of water.
Current. The flow of electrons is the flow of a moving charge. The rate of flow is current (the amount of charge that flows in a set time). The equation is: I = Qt Hope this helps.
The condition is called a hemorrhagic stroke. It occurs when a blood vessel in the brain ruptures, leading to bleeding and subsequent damage to brain tissue. Immediate medical attention is necessary to prevent further complications.
A continuous source of water, such as precipitation or melting snow, is necessary for a river system to form. This water needs to flow downhill, carving a path through the landscape, which creates channels that eventually form a river system.
Liquid cross charge in a thermostatic expansion valve (TXV) occurs when the refrigerant flowing through the valve is at a temperature below the designed setpoint. This can affect the valve's ability to maintain proper superheat and refrigerant flow, impacting the system's performance and efficiency. Adjusting the valve setpoint or system charge may be necessary to correct the issue.
For the sustained flow of charge in a wire, an analogous condition is the continuous movement of water in a pipe, where the pipe needs to be unobstructed and there must be a constant pressure or voltage difference to drive the flow. In the case of electrical current, the wire must be unbroken and there must be a continuous voltage (potential difference) provided by a source such as a battery.
For example, you can make an analogy with the flow of water in a tube.
For the sustained flow of water in a pipe, there must be a continuous pressure difference driving the water from a high-pressure area to a low-pressure area. Similarly, for sustained flow of electric charge in a wire, there must be a continuous voltage difference (or electric potential difference) between two points in the circuit, which drives the flow of electrons from the negative terminal to the positive terminal. Both scenarios rely on a gradient—pressure for water and voltage for electric charge—to maintain flow.
The necessary condition for the sustained flow of charge in a wire is the presence of a closed circuit or path for the current to flow in. This closed path allows the charges to continuously move and circulate through the wire. Additionally, an external source of electromotive force, such as a battery or a power supply, is required to provide the energy needed to maintain the flow of charge.
The necessary condition for a charge to move in a wire is the presence of an electric field, which exerts a force on the charge causing it to move. This movement of charges in a wire is what constitutes an electric current.
By the application of a voltage source electric charge will flow.
The flow of water in a pipe is analogous to the flow of charge in a wire as both involve the movement of particles through a medium. In a pipe, water molecules move due to a pressure difference, while in a wire, charges move due to a voltage difference. Both systems exhibit resistance to flow, which can be influenced by factors such as pipe diameter or wire material.
For electric charge to flow, there must be a potential difference (voltage) between two points in a conducting material. This difference in potential creates an electric field that exerts a force on the charges, causing them to move. Without a potential difference, charges will not flow.
A potential difference, or voltage, is necessary for a sustained flow of electric charge through a conducting medium. This potential difference creates an electric field that pushes the charges through the conductor. Without a potential difference, the charges will not move and no current will flow.
A potential difference (voltage) across the conducting medium is necessary for a sustained flow of electric charge. This potential difference creates an electric field that pushes the charges through the conductor. Without a potential difference, there would be no force to maintain the flow of charges.
negative pressure is needed for a sustained flow of water in a pipe.
A medical condition analogous to a closed valve is heart valve stenosis. In this condition, one or more heart valves become narrowed, impeding blood flow and causing the heart to work harder to pump blood. This can lead to symptoms like fatigue, shortness of breath, and chest pain, much like the inefficiency caused by a valve that fails to open properly.