My Flahs Cards Flashcards
(20 cards)
In a serious circuit the____ is the same all the way around
CURRENT
What can u use to measure the current in a circuit
By using an ammeter
Current is never used up in a ___
Circuit
What is the conventional current
Is when scientists always draw the current from the opposite direction we call that conversation current 
The current can only flow in one path in a
Series’s current
In parred circuits it contains
Branches
What dose the branches mean in a parallel circuit
It mean that the current splits some of the current passes through some of the branches
What dose the top ammeter of the parred circuit tells us
How many current is leaving the cell3.g 0.3 A
The current in the branches adds up (parallel circuit)
up to the total current leaving the cell
Work out the current in the lower branche
5-3 =2
2A
What is the electric current
Is the flow of electrons around a circuit
Energy transfer involved in a serious circuit
The cell has a store of chemical energy this is transferred to electrical energy which is carry by the electrons passing out of the cell when the electrons pas through compounders (e.g lamp) electrical energy is transferred to other forms of energy in case of the lamp energy and thermal energy
Pd means
The pd of 1 volt tells us that 1joe is transferred for each coulomb of charge that is moving through the circuit
Potential difference is equal to
Voltage
What symbol of circuit do use to measure pd
A voltmeter
What dose pd tells us in a circuit
It tells us how energy is transferred in an electrical circuit
How do you use pd in circuits in series
What’s one key future of this circuit
Both lamps are now dimmer than the single lamp on the previous circuit
We can see now that the total energy carried by the current has been
Shared between the two lamps it shows now how the lamps is dimmer rather than having two lamps
The lamp with the pd with 6 volts will be brighter why
Because it’s transferring more energy than the lamp with the pf of 3v
