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A difference in charge
A device to get a current flow through a wire (i.e. from a battery) and no breaks in the wire.
A difference in temperature
There are many answers that describe the flow of electrical charge. The flow of electrical charge for example is usually constant.
Rate of flow of charge is called electric current. Generally we knows current means flow.... here rate of flow of charge means how much charge flows in a given time is called electric current
negative pressure is needed for a sustained flow of water in a pipe.
negative pressure is needed for a sustained flow of water in a pipe.
A difference in charge
For example, you can make an analogy with the flow of water in a tube.
A device to get a current flow through a wire (i.e. from a battery) and no breaks in the wire.
By the application of a voltage source electric charge will flow.
A difference in temperature
Potential Difference
The only two things needed for current flow are electromotive force or voltage and a conductor. The amount of current flow will depend on the "Resistance" in the circuit.
flow of charge is called current. but the direction of flow of current is always taken oppsite to the flow of charge.
No. Heart murmurs are usually caused by turbulent blood flow around leaky or otherwise insufficient heart valves. Sustained ventricular systole is not a real condition as far as I know.
An electrical charge is the result of the flow of electrons.