Building A Circuit On A Breadboard

Breadboards are commonly used in electronics to quickly and easily prototype circuits. They have a grid of holes that allow components to be inserted and connected without the need for soldering. This makes it convenient for testing and modifying circuits without the permanent commitment of soldering. Therefore, the statement that breadboards allow for prototyping without soldering is true.

When components are installed in parallel on a breadboard, it means they are connected to the same power source or ground. This connection is made through the socket strip on the breadboard, which runs horizontally across the board. Therefore, all components installed in parallel will share the same socket strip at both ends, making the statement "True".

You may use any method you desire as long as the circuit meets you prototypes schematic

The last connection in the circuit should be the "hot" or positive terminal for the power supply because this ensures that the current flows in the intended direction and that the circuit functions properly. If the last connection is made to the negative terminal, it would result in reverse polarity, which can lead to malfunctioning or damage of the circuit components. Therefore, it is important to connect the positive terminal last to ensure correct polarity and safe operation of the circuit.

Short wires have the advantage of not being easy to entangle as well as having a lower chance of induction.
Wrapping the wires in a coil effectively makes an inductor which may impact other components.
Long wires increase resistance and impedance in the circuit.
The purpose of a breadboard is to allow solderless connections.

The conductive metal strips on a breadboard serve multiple purposes. They contain buss strips that are commonly used for power connections, allowing for easy distribution of power throughout the circuit. They also provide socket strips in the build area to hold components securely in place. Additionally, these metal strips are conductive with low resistance, ensuring efficient flow of electrical signals. Therefore, all of the given options are correct.

Placing both ends of a component in the same socket strip effectively "shorts" around the component.
Polarity should always be observed when connection a component. Failing to do so may blow the component or block current.
Always have a plan when building and look ahead to allow room for other components

Power should always be removed if possible to prevent shock.
Even in low power circuit when current travels through a conductor it may cause burns or blistering.
Your are vulnerable to flying shards or oils if a component explodes and your eyes are soft targets
You should always be cautious and treat the circuit as if it is energized.

When preparing to build on a breadboard, it is important to never assume that the test equipment and components are functional. This means that you should always check and test the equipment and components before starting the build. Assuming that they are functional without testing them can lead to potential issues and errors in the circuit. It is always better to be cautious and ensure that everything is working properly before proceeding with the build.

Ammeters are connected in within the circuit in series with the path they are measuring
Setting the meter to the ohms position within the path will damage the multimeter.
The ammeter has a low internal resistance and placing an extra resistor in series will increase that resistance and not provide a proper reading.