Conductors, insulators and electrical safety – fundamentals
How it works
Conductors are substances that conduct electric current well, such as metals. Insulators conduct current hardly or not at all, e.g. plastic or glass. Electrical safety means not accidentally closing the circuit and protecting oneself from electric shocks. In everyday life, insulators are used to protect people from dangerous current, e.g. in cable sheaths. The distinction between conductors and insulators is important for the safe handling of electricity.
Conductors let electric current pass through easily, insulators prevent the flow of current almost completely. For electrical safety, insulators are used to prevent dangerous paths for current.
An example
Which of the following substances is a typical insulator?
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50 Exercises · three difficulty levels · selection and number input
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: KMK Educational Standards Mathematics ESA/MSA. The topic assignment may vary by federal state.