9)Give scientific reason: Plastic is an insulator because ______ (2mks) *
it has low resistance
it has high resistance
it has high resistance and current cannot flow through it
it has low resistance and current cannot flow through it
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It has high resistance and current can not flow through it
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They don't have free electrons moving around (delocalised electrons) so they can't conduct heat and electricity which gives them a property of good insulators
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