Question

What are the 3 measurable quantities of a circuit?

Answer 1

The three primary measurable quantities in an electrical circuit are:

1. Voltage (V):
   

   - It is the electrical potential difference between two points in a circuit.
   - Measured in Volts (V).
   - It’s like the "pressure" that pushes electrons through the circuit.

1. Current (I):
   

   - It is the flow of electric charge through a conductor, such as a wire.
   - Measured in Amperes (A).
   - Think of it as the amount of water flowing through a pipe; in this case, it’s the flow of electrons.

1. Resistance (R):
   

   - It is the opposition to the flow of electric current in a circuit.
   - Measured in Ohms (Ω).
   - You can think of it like the friction in a pipe that resists the flow of water.

These three quantities are related through Ohm’s Law, which states:

\[
V = I \times R
\]

Where:

1. V is the voltage,
   

1. I is the current, and
   

1. R is the resistance.
   

Let me know if you need a deeper explanation of any of these!