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ELECTRIC CURRENT AND RESISTANCE (Types (current of convection (This is due…
ELECTRIC CURRENT AND RESISTANCE
Types
current of convection
This is due to the movement of electrically charged bodies
The continuous or direct current
Is one in which charges flow in one direction
Current of conduction
This is due to the movement of free electrical charges (positive or negative ) in a conductor
Alternate current
Is one in which the charges move, first in one direction and then in the opposite direction through the circuit
Any material, no matter how conductive it is, presents an opposition to electrical current.
is represented by the letter R. In the same it is represented by is the ohm
Length of the conductor
The longer to length, the higher the electrical resistance
Conductor diameter
The larger the diameter, the lower the electrical resistance
Type of conductive material
The greater or lesser the resistance depends on the materials resistivity
Insulators have low conductivity and conductors have high conductivity
