Voltage And Current Are
In an electric field electric charges are affected by a force acting on them.
Voltage and current are. Just like voltage resistance is a quantity relative between two points. Current voltage and power. When describing voltage current and resistance a common analogy is a water tank. These include the quantities current voltage and power.
Total voltage drop v 2 v 2 v 3 10 5 5 20v. If the body having higher resistance then the damage will be lower. In this analogy charge is represented by the water amount voltage is represented by the water pressure and current is represented by the water flow. Voltage drop across resistor r 1 v 1 10 x 1 10v.
Now calculate the voltage drop across each resistor. Total current flow 20v 20 ohm 1a. Voltage drop across resistor r 2 v 2 5 x 1 5v. Voltage as an expression of potential energy is always relative between two locations or points.
Sometimes it is called a voltage drop when a voltage source is connected to a circuit the voltage will cause a uniform flow of charge carriers through that circuit called a current. Voltage drop across resistor r 3 v 3 5 x 1 5v. Relationship between voltage and current. The basic difference between voltage and current is that voltage is the amount of energy per charge which is required to move electrons from one point to another while current is the rate of flow of charges.
For this reason the quantities of voltage and resistance are often stated as being between or across two points in a circuit. The amount of current in a circuit depends on the amount of voltage and the amount of resistance in the circuit to oppose current flow. Current and voltage are two fundamental quantities in electricity voltage is the cause and current is the effect. Electric potential difference is also called as voltage between two points.
Key difference current vs voltage. So for this analogy remember. Volts v ampere a denoted as. Electricity is the flow of electric charge we can describe the flow of electric charge in several ways.
The voltage between two points is equal to the electrical potential difference between those points. The fatal voltage for a human body is 40 volts and above. Current i is the rate of flow of charge carriers such as electrons current is usually thought of as moving in the direction of positive charge so from the positive power supply to the negative. It is the difference of electric potential between two points or it is energy per unit charge.
It is the rate of flow of electric charges in a circuit at a particular point. Hence v 1 v 2 v 3 vs v 1 v 2. This may be attained by using rubber gloves rubber mats and like others. Relationship between voltage and current is described in the equation of ohm s law v ir.