I am confused on the terms Open, Short, and Closed when talking about circuits. As far as I know:
- a) Open circuit means the wires are cut off so there will be no current flow, but there is voltage.
- b) Closed circuit means the wires are connected so there will be flow of current, but there is no voltage
- c) Short circuit also refers closed circuit.
Is my knowledge (a,b,c) about the question correct?
There is also another thing which confuses me:
- d) Voltage is the force that makes the current flow. How can there be current but no voltage or voltage but no current? (from formula: \$V = I \cdot R\$)
Please explain a, b, c and d so it won't bother me anymore if I am going to solve circuits..