The available source of charge that pushes a charge through a circuit is voltage.
the current
it pushes and pulls the electrons through the circuit
A circuit breaker.
it pushes and pulls the electrons trough the circuit
A voltage supply is needed to operate a circuit.
a cell pushes electric currents around a circuit.If there are two or more cells then more currents will flow through them.
A small pyrotechnic (like gunpowder) charge.
The Heart
When the primer is struck, it ignites. When it does, it ingites the powder charge. The powder charge explosion pushes the bullet down and then out of the barrel.
current i think just ask you bro
'Thrust' pushes against it from the rear, and 'drag' pushes against it from the front.
the voltage pushes