What is the relation between current and area of cross section?

Current is the change in charge over the change in time. Resistance is proportional to resistivity and length, and inversely proportional to cross sectional area.

Is current proportional to cross sectional area?

Therefore ,current is directly proportional to cross sectional area,greater the area more is the current.

Is current proportional to area?

Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field. The magnitude of the current in a given loop is proportional to the strength of the magnetic field, the area of the loop, and the rate of change of flux, and inversely proportional to the resistivity of the material.

What is the relationship between current and area?

The relationship between resistance and the area of the cross section of a wire is inversely proportional . When resistance is increased in a circuit , for example by adding more electrical components , the current decreases as a result.

Does current depend on length?

In short, no, current is not affected by the length of conductor (well, in the real world at least).

How does the cross-sectional area of the wire affect electric current?

Wider wires have a greater cross-sectional area. In the same manner, the wider the wire, the less resistance that there will be to the flow of electric charge. When all other variables are the same, charge will flow at higher rates through wider wires with greater cross-sectional areas than through thinner wires.

How does current flow in a wire?

In metal wires, current is carried by negatively charged electrons, so the positive current arrow points in the opposite direction the electrons move. This has been the sign convention for 270 years, ever since Ben Franklin named electric charges with + and – signs.

What is relation between current and area?

Electric current is the rate at which charge flows through a surface. Electric current is often just called current . As a scalar, current has magnitude only. The symbol for current is I (italic) from the intensity of a current….Summary.

What does current depend on?

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. Just like voltage, resistance is a quantity relative between two points.

What does electron current depend on?

Electric current is the result of the relative motion of net electric charge. In metals, the charges in motion are electrons. The magnitude of an electric current depends upon the quantity of charge that passes a chosen reference point during a specified time interval.

Does current change with cross-sectional area?

In a series combination of resistances same current flows through all the resistors, no matter what there cross-sectional areas are, what their lengths are, what is the value of resistances and even the material of the wires maybe different, current flowing through them will be same always.

Does current depend on the cross sectional area of a conductor?

Again resistance is inversely proportional to area of conductor. Therefore ,current is directly proportional to cross sectional area,greater the area more is the current. Physics of Everyday Life: Does current (I) depend on the cross section area of a wire?

Does current depend on the cross section of the serving wire?

If you reduce the cross section of the serving wire, you may reduce the voltage somewhat to the item served, and the effect is hugely dependent on the nature of the load. If it is resistive, certainly the current will be reduced in the whole circuit including the wire. If Does current depend on the area of the cross-section of the wire used?

How does the cross section area of a wire affect resistance?

We can see from the graph that as the cross section area, A, increases, the resistance, R, decreases. A thicker wire has a smaller resistance than a thin wire. A more detailed investigation shows that resistance and cross section area are inversely proportional. If you double the cross section area you half the resistance of the wire.

What is the relationship between resistance and current in a conductor?

Hence for a a constant voltage the current is inversely proportional to the resistance which in turn is directly and inversely proportional to length and cross sectional area respectively. Where I is current, n is number of electrons, e is charge of one electron, A is the cross sectional area of the conductor, and Vd is the drift velocity.

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