Show:
Units
Concepts
Mix
100
How do we measure resistance?
Ohms
100
What is electricity?
Electricity is defined as the flow of electric charge.
100
When resistance is increased in a circuit, for example by adding more electrical components, the current XXXXXXXX as a result.
Decreases
200
How do we measure current?
Amps
200
Elements with high conductivity, which have very mobile electrons are called...?
Conductors
200
The resistance of a long wire is XXXXXX than the resistance of a short wire
Greater
300
How do we measure voltage?
Volts
300
What device do we use to measure current? And how is connencted?
An ammeter. We place an ammeter in series as the electrons need to flow through it to be measured
300
Can you tell us Ohm’s equation?
V=I*R
400
How do you measure potencial energy?
Joules
400
Can you give 3 examples of conductors?
Copper, gold, silver, steel...
400
A conductor of silver has a section of 3*10^6m2 and it is 15m long. What resistance will have to the current?
0,08 Ohms
500
In a parallel circuit the current is XXXXX between the branches
Shared
500
What is the potencial difference measured on the ends of a resistor of 10 Ohms in a circuit where a current flows at 4A?
40 V