296. A semiconductor is electrically neutral because it has:

1. 1. no majority carriers

   
   
   

   2. no minority carriers

   
   
   

   3. no free carriers

   
   
   

   4. equal positive and negative carriers

   
   
   

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1. View Hint View Answer Discuss in Forum

   A semiconductor is electrically neutral because it has equal positive and negative carriers.

   Correct Option: D

   A semiconductor is electrically neutral because it has equal positive and negative carriers.

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297. Match List-I with List-II, and select the correct answer using the codes given below the lists:
     

     List-I (Materials)	List-II (Applications)
     A.Platinum	1. Computer memory core
     B. Ferrites	2. Ferroelectric
     C. Selenium	3.Contact material
     D. Rochelle salt	4. Solar battery

1. 1. A B C D
      1 2 4 3

   
   
   

   2. A B C D
      2 4 3 1

   
   
   

   3. A B C D
      3 1 4 2

   
   
   

   4. A B C D
      4 3 1 2

   
   
   

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1. View Hint View Answer Discuss in Forum

   List-I		List-II
   Platinum	→	Contact material
   Ferrites	→	Computer memory core
   Selenium	→	Solar battery
   Rochelle salt	→	Ferroelectric

   Correct Option: C

   List-I		List-II
   Platinum	→	Contact material
   Ferrites	→	Computer memory core
   Selenium	→	Solar battery
   Rochelle salt	→	Ferroelectric

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298. Amorphous structure is observed in:

1. 1. manganese

   
   
   

   2. glass

   
   
   

   3. quartz

   
   
   

   4. nickel

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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299. Magnetic head recorder is made of:

1. 1. metallic glass

   
   
   

   2. rochelle salt

   
   
   

   3. ferrous alloy

   
   
   

   4. nonferrous metal

   
   
   

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1. View Hint View Answer Discuss in Forum

   Magnetic head recorder is made of metallic glass.

   Correct Option: A

   Magnetic head recorder is made of metallic glass.

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300. A member of ceramic family is:

1. 1. bainite

   
   
   

   2. garnet

   
   
   

   3. LDPE

   
   
   

   4. high speed steel

   
   
   

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1. View Hint View Answer Discuss in Forum

   Garnet is a member of ceramic family.

   Correct Option: B

   Garnet is a member of ceramic family.

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