Current And Circuit Symbols Flashcards
1
Q
What is current ?
A
The flow of electrical charge
2
Q
Complete : Electrical charge will only flow round a complete (closed) circuit if …
A
There is a p.d . ( current can only flow if there’s a source of p.d.)
3
Q
What is the unit of current ?
A
Amps (A)
4
Q
What is resistance and what is its unit ?
A
Anything that slows the flow of electrons .
Ohm
5
Q
Complete : the greater the resistance across a component …
A
The smaller the current that flows .
6
Q
What is the charge equation ?
A
Q=It
Charge flow of coulombs,C)=(current ,A)x(Time s
7
Q
Current is the measurement of ……..
A
……..the rate of charge flow.
