T03- CP02-Review

Ohm’s law explains the relationship between voltage, current, and resistance in a circuit.

Where:

V = voltage expressed in Volts

I = current expressed in Amperes or Amps

R = resistance expressed in Ohms (Ω)

Ohm’s law is calculated using what formula?   

• V = R / I

• V = I – R

• V = I / R

• V = I x R

An electrical circuit is the path in which electrical current can flow. Basic circuits are made of three major parts. 

 

Which of the below is not a major part of basic circuits?   

• conductive path (e.g. electric wires)

• load (electrical component)

• non-conductive material (e.g. plastic, wood)

• voltage source (e.g. battery)

What type of circuit is shown in the image?

This type of circuit is when there is a connection between two points that should not be connected directly. For example, when connecting the two terminals of a power supply directly. 

• An open circuit

• A short circuit

• A closed circuit

• An overloaded circuit

Look at the four node lines circled in the breadboard image. These are known as the ______________.

• power rails

• power banks

• power trains

• power sources

In electronics, a photoresistor is a component that has a variable resistance. Its resistance decreases when the intensity of ________ increases.

• heat

• water

• sound

• light

In electronics, a _______ removes electrical current from an electrical circuit when the current is too high. The metal wire inside it melts (breaks or blows).  

• transistor

• fuse

• capacitor

• switch

In electronics, what component takes in a small electric current (input) and produces a bigger current (output)? It amplifies current.

• A transistor

• A fuse

• A capacitor

• A battery

Look at the image of the Raspberry Pi. 

 

 

 

What are the name of the ports enclosed in red?

• LAN

• 40 Pin GPIO ribbon

• HDMI

• USB

What cable is used to physically connect a Falcon HAT with the Raspberry Pi?

• LAN cable

• GPIO ribbon cable

• HDMI cable

• USB cable