Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Current |
When potential difference is applied across a conductor, electrons move from lower potential to higher potential. This flow of electrons across the conductor is called electric current. |
i= n e A vd i=V/R |
|
|
Potential |
The work done in moving a unit positive charge from infinity to a point inside the electric field is called potential. |
V=iR V=E.ds |
|
|
Resistance |
*The ratio of potential difference across a conductor to the current flowing through it. *Obstruction in the flow of electrons. |
R=V/i R=ml/ne^2tou R=rho*l/A |
|
|
Specific resistance Specific conductance |
Resistance offered in 1 metre of the the conductor - resistivity Reciprocal of resistivity -specific conductance or conductivity. |
Rho- ohm*metre |
|
|
Ohm's law |
The physical conditions of the conductor being constant, the current flowing through a conductor is directly proportional to the potential difference across the conductor. |
V=iR |
