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10Water flows from a higher level to a lower level due to difference in potential.
A cell works like a water pump in an electric circuit.
If the water levels in both bottles are equal, water continues to flow.
Electric charges flow from low potential to high potential.
A battery converts chemical energy into electrical energy.
Potential difference is also known as voltage.
Electromotive force depends on the external resistance of the circuit.
A voltmeter is connected in parallel to measure p.d.
When no current flows, emf and p.d. are equal.
Potential difference is the cause of electromotive force.
Percentage: 0%
What makes electric charges flow in a circuit?
Which device is similar to a cell in the water flow example?
What does a voltmeter measure?
The SI unit of potential difference is:
emf is defined as energy provided per unit:
When current flows, the p.d. across a bulb is:
Which terminal has higher potential?
Potential difference depends on:
Electric energy is transformed in:
Which energy is used inside a dry cell?
Electric charges flow from ______ potential to lower potential.
The ability of a cell to provide energy per unit charge is called ______ force.
Potential difference is commonly known as ______.
The SI unit of emf and p.d. is ______.
A battery converts ______ energy into ______ energy.
A voltmeter is used to measure ______ difference.
When current flows, p.d. is ______ than emf.
The positive terminal of a cell has ______ potential.
Potential difference is energy transformed per unit ______.
When chemical reaction stops in a cell, current ______ flowing.