IGCSE Physics Paper-2: Specimen Questions with Answers 20 - 20 of 20

Passage

Here are two words relating to the transfer of thermal energy. (Conductor and insulator). Complete each of the following sentences by writing in the appropriate word from the lost.

Question 20 (3 of 3 Based on Passage)

Edit

Write in Short

Short Answer▾

The electric wire is often coated by plastic, because plastic is a good electric ________.

Explanation

Insulator

The electric wire is often coated by plastic, because plastic is good electric insulator and without insulation, the electricity running in a bare cable would leap over into any other electrically conducting material it touched. With enough voltage, a human could be electrocuted. Also electrical signals would disappear and get lost, causing equipment to fail.

Choose Paper