How to Calculate and Solve for Electron Drift Velocity | Electrical Properties

The electron drift velocity is illustrated by the image below.

To compute for electron drift velocity, two essential parameters are needed and these parameters are Electron Mobility (μe) and Electric Field Intensity (E).

The formula for calculating electron drift velocity:

vd = μeE

Where:

vd = Electron Drift Velocity
μe = Electron Mobility
E = Electric Field Intensity

Let’s solve an example;
Find the electron drift velocity when the electron mobility is 45 and the electron field intensity is 5.

This implies that;

μe = Electron Mobility = 45
E = Electric Field Intensity = 5

vd = μeE
vd = (45)(5)
vd = 225

Therefore, the electron drift velocity is 225 m/s.

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How to Calculate and Solve for Current Density | Electrical Properties

The current density is illustrated by the image below.

To compute for current density, two essential parameters are needed and the parameters are Electrical Conductivity (σ) and Electric Field Intensity (E).

The formula for calculating current density:

j = σE

Where:

j = Current Density
σ = Electrical Conductivity
E = Electric Field Intensity

Let’s solve an example;
Find the current density when the electrical conductivity is 32 and the electric field intensity is 4.

This implies that;

σ = Electrical Conductivity = 32
E = Electric Field Intensity = 4

j = σE
j = (32)(4)
j = 128

Therefore, the current density is 128 A/m².

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How to Calculate and Solve for Electric Field Intensity | Electrical Properties

The electric field intensity is illustrated by the image below.

To compute for electric field intensity, two essential parameters are needed and these parameters are Voltage (V) and Distance between Plates (l).

The formula for calculating electric field intensity:

E = V / l

Where:

E = Electric Field Intensity
V = Voltage
l = Distance between Plates

Let’s solve an example;
Find the electric field intensity when the voltage is 24 and the distance between plates is 8.

This implies that;

V = Voltage = 24
l = Distance between Plates = 8

E = V / l
E = 24 / 8
E = 3

Therefore, the electric field intensity is 3 Vm-1.

Calculating the Voltage when the Electric Field Intensity and the Distance between Plates is Given.

V = El

Where;

V = Voltage
E = Electric Field Intensity
l = Distance betweeen Plates

Let’s solve an example;
Find the voltage when the electric field intensity is 10 and the distance between plates is 5.

This implies that;

E = Electric Field Intensity = 10
l = Distance between Plates = 5

V = El
V = 10 x 5
V = 50

Therefore, the voltage is 50 V.

Continue reading How to Calculate and Solve for Electric Field Intensity | Electrical Properties

How to Calculate and Solve for Electrical Conductivity | Electrical Properties ewqdsx

The electrical conductivity is illustrated by the image below.

To compute for electrical conductivity, one essential parameter is needed and this parameter is Resistivity (ρ).

The formula for calculating electrical conductivity:

σ = 1 / ρ

Where:

σ = Electrical Conductivity
ρ = Resistivity

Let’s solve an example;
Find the electrical conductivity when the resistivity is 22.

This implies that;

ρ = Resistivity = 22

σ = 1 / ρ
σ = 1 / 22
σ = 0.045

Therefore, the electrical conductivity is 0.045 (Ωm)-1.

Continue reading How to Calculate and Solve for Electrical Conductivity | Electrical Properties ewqdsx

How to Calculate and Solve for Voltage | Ohm’s Law

The voltage is illustrated by the image below.

To compute for voltage, two essential parameters are needed and these parameters are Current (I) and Resistance (R).

The formula for calculating voltage:

V = IR

Where:

V = Voltage
I = Current
R = Resistance

Let’s solve an example;
Find the voltage when the current is 12 and resistance is 6.

This implies that;

I = Current = 12
R = Resistance = 6

V = IR
V = (12)(6)
V = 72

Therefore, the voltage is 72 V.

Continue reading How to Calculate and Solve for Voltage | Ohm’s Law