Voltage Flashcards
What does EMF stand for?
Electromotive Force
EMF is the force that drives the … around a circuit
Current
The … of electrons at the terminal of a battery or generator creates a … … between the … and … terminal
Potential difference
Positive
Negative
This potential difference gives rise to what is called …
EMF or electromotive force
The symbol for volts is a …
V
Voltage is the … which causes the current to flow
Current
List 6 main methods by which voltage can be produced
Chemical
Friction
Induction
Pressure
Heat
Light
What 3 things do you need to make a simple Inductor
An electrical conductor
A magnetic field
Relative movement
If an electrical conductor is passed through a magnetic field, … is … in the conductor
Voltage
Generated
If a magnetic field is passed over a … , voltage is generated in the …
Conductor
Movement must be in such a manner that the conductor cuts, is is cut by the … … of force
Magnetic lines
Certain manufactured materials have the property that when exposed to light they start generating a …
Voltage
Atrificial conductors that crate power while being exposed to light are called…
Semiconductors
The amount of voltage created by the semiconductors depends on the … … … …
Intensity of the light
