hvac

Front

Which path will a current flow?

Back

The path with less resistance.

Front

What is the formula to calculate voltage (E) if resistance (R) is 20 ohms and current (I) is 5 amps?

Back

E = R * I = 20 ohms * 5 amps = 100 volts.

Front

What color is the ground wire when wiring a switch?

Back

Copper.

Front

What is the unit of current?

Back

Amps.

Front

What symbol represents an open switch?

Back

Open switch.

Front

What is resistance?

Back

Resistance is a measure of the opposition to the flow of electric current, measured in ohms.

Front

What does a closed switch do?

Back

A closed switch allows current to flow through the circuit.

Front

What is voltage?

Back

Voltage is the electric potential difference between two points, measured in volts.

Front

What is the relationship between voltage, current, and resistance?

Back

Ohm's Law states that V = I * R.

Front

What is an electrical circuit?

Back

An electrical circuit is a closed loop that allows current to flow.