Question

which is not an isolator?option: rubber,plastic,concrete,aluminium​

Answer 1

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{QUESTION}}$

which is not an insulator ?

• rubber
• plastic
• concrete
• aluminium

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$\Large\fbox{\color{purple}{ SOLUTION }}$

★ option (d) aluminium is correct

reason -

aluminium is a well known metal which have all the properties of metal

thus also having a property to conduct electricity shows that it is a good conductor and thus we will count aluminium in conductors rather than insulators

therefore aluminium is not an insulator

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$\bf\Large\red{ THANKS \: FOR \: YOUR}$

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$\bf\Large\red{ HELPS }$

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Answer 2

$\huge\colorbox{r}{Aluminium}$