electric current can travel only through a
Electric current can travel only through a closed conducting path , usually made of a material called a conductor such as metal wire.
Direct answer
- In basic school science, the sentence is completed as:
“Electric current can travel only through a closed circuit made of conductors.”
- Conductors (like copper or aluminium wires) allow electric charge to flow, while insulators (like rubber, glass, dry wood) do not.
Quick scoop: what this means
- For current to flow:
- There must be a continuous, unbroken path from one terminal of the source (like a cell) back to the other terminal.
* That path must be made of conducting materials so electrons can move freely.
- If there is a gap (open switch, broken wire, air gap) or an insulator in between, the circuit is open and current stops flowing under normal conditions.
Mini table: where current travels
| Material / path | Can current travel? |
|---|---|
| Metal wire (copper, aluminium) | Yes, good conductor; used in circuits. | [3][1][7]
| Rubber, plastic covering of wires | No, they are insulators and block current. | [1][7]
| Dry air (small gaps) | Normally no; air acts as an insulator unless voltage is very high (sparks, lightning). | [5][7]
| Human body | Yes, the body conducts electricity, which is why electric shocks are dangerous. | [3]
Little story-style view
Imagine a line of tiny charged “travellers” trying to go around a racetrack.
- When the track is a smooth metal loop with no breaks, the travellers can keep moving and that motion is the electric current.
- If the track has a break or is made of rubber in one section, they get stuck and the current stops.
So, in everyday textbook language: electric current can travel only through a closed circuit of conductors.
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