ELECTRICITY Flashcards
How can you express electric current?
Electric current is expressed by the amount of charge flowing through a particular area in a unit time.In other words, it is the rate of flow of electric charges.
What does a switch do?
A switch makes a conducting link between the cell and a bulb.
What is electric circuit?
A continuous and closed path of an electric current is called electric circuit.If the circuit is broken anywhere, the current stops flowing and the bulb does not glow.
What is the SI unit of electric charge?
The SI unit of electric charge is coulomb (C).
Electric current is expressed by a unit called____________.
The electric current is expressed by a unit called ampere.Which is named after a French scientist Andrea Maria Ampere
Which instrument is used to measure electric current in a circuit?
An Ammeter is used.It is always connected in series in a circuit through which current is to be measured.
Through which terminal of the cell To which terminal of the cell the electric current flows in a circuit through the bulb and ammeter?
The electric current flows in the circuit from positive terminals of the cell to the negative terminal of the cell through bulb Ammeter.
