1) Which of the following is an intrinsic semiconductor? a) Silicon doped with phosphorus b) Gallium arsenide c) Pure silicon d) Silicon doped with boron 2) Adding pentavalent impurities to a semiconductor produces which type? a) Intrinsic semiconductor b) P-type semiconductor c) N-type semiconductor d) Compound semiconductor 3) Which element is commonly used to create a P-type semiconductor when added to silicon? a) Arsenic b) Phosphorus c) Boron d) Sulfur 4) Compound semiconductors such as GaAs are widely used because they: a) Have no energy band gap b) Exhibit high electron mobility c) Are cheaper than silicon d) Cannot emit light 5) Which statement correctly differentiates between P-type and N-type semiconductors? a) P-type has electrons as majority carriers b) N-type has holes as majority carriers c) P-type has holes as majority carriers d) Both have the same type of majority carriers

Types of Semiconductor

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