Term
| difference in electric potentil beetween two points, free charge flows when there is a difference and will continue untill both points reach a common potential. |
|
Definition
|
|
Term
for potential difference the flow of charge persists for as ___________________.
without a potentail difference,_______________ |
|
Definition
-long as there is potentail difference.
-no charge flows. |
|
|
Term
| the flow of electric charge is called |
|
Definition
|
|
Term
| what does a sustained current require |
|
Definition
| a suitable pumping device which provides difference in electric potential |
|
|
Term
| the unit of electric potential difference is called |
|
Definition
|
|
Term
| what is a prime mover and source of voltage in an electric circuit. |
|
Definition
|
|
Term
| how much current exists depends not only on the voltage but also on the___________________ the conductor offers to the flow of charge, |
|
Definition
|
|
Term
| a short pipe offers___________ less resistance to water flow than a long pipe, but the wider pipe results in______________ |
|
Definition
|
|
Term
| does warm air mean less resistance for wires |
|
Definition
|
|
Term
| the relationship among voltage, current , and resistance is summarized in a statement callled_____________. |
|
Definition
|
|
Term
| electrical resistance is measureed in units called_________. |
|
Definition
|
|
Term
| between dry and moist skin which will cause more damage when touching electrodes of a battery. |
|
Definition
|
|
Term
| to recieve a shock thhere must be a ___________ in electrical potential between one part of your body and ____________. |
|
Definition
|
|
Term
when a current flows in one direction it is called_________
when a current is moved first in one direction and then the opposite alternating to and fro about in relatively fixed position it is caled_________________. |
|
Definition
direct current
alternating current. |
|
|
