Question

    IC chips used in computers are usually made of:

    A Lead Correct Answer Incorrect Answer
    B Silicon Correct Answer Incorrect Answer
    C Chromium Correct Answer Incorrect Answer
    D Gold Correct Answer Incorrect Answer

    Solution

    Most ICs are made of silicon, which is abundant in ordinary beach sand. Pure crystalline silicon, as with other semiconducting materials, has a very high resistance to electrical current at normal room temperature

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