How resistance affects current?

Resistance slows down the current, current is how quickly the electrons move. 

Voltage means: how much energy electrons are carrying. 

Electrons carry the energy around. If your electrons are not moving there is no energy. 

PARTS OF CIRCUIT:

• Wire : it transfers the electrons. The wire connects the components on a circuit so they can pass on electricity.

•  Battery: it produces the electricity/energy source. 

• Switch: a switch turns on and off.

• Fuse: if there is too much energy going through a circuit the fuse breaks. A fuse stops the flow of electrons if it is going too fast.

• Resister: slows down the flow of electrons. 

A series circuit is one path (all of the components are in a single loop) and a parallel circuit has many paths. 

- In a parallel circuit the current is split and the opposite with series circuit.  

Resistance is about pushing back. A higher resistance the current is slower . A lower resistance the current is faster.

Current (I) is measured in AMPS

Voltage (V) is measured in volts 

Resistence (R) is measured in ohms. 

 

So when we add resistance into a circuit the current slows down eg. if we have a light bulb and we make the resistance lower the light bulb will be brighter because the current is faster so less resistance makes current go faster.