66. The material of a permanent magnet has

1. 1. High retentivity, low coercivity

   
   
   

   2. Low retentivity, low corecivity

   
   
   

   3. Low retentivity, high coercivity

   
   
   

   4. High retentivity, high coercivity

   
   
   

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   NA

   Correct Option: D

   NA

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67. The statement "Algebraic sum of the current meeting at a node is zero"

1. 1. Ampere's law

   
   
   

   2. Lenz's law

   
   
   

   3. Faraday;s law

   
   
   

   4. Kirchhoff's law

   
   
   

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   NA

   Correct Option: D

   NA

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68. A compass needle just above a wire in which electrons are moving towards, will point

1. 1. East

   
   
   

   2. West

   
   
   

   3. North

   
   
   

   4. South

   
   
   

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   NA

   Correct Option: D

   NA

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69. Ampere rule is used to find the

1. 1. Direction of current

   
   
   

   2. Direction of magnetic field

   
   
   

   3. Direction of motion of the conductor

   
   
   

   4. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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70. Phase difference between voltage and current in a capacitor in AC circuit is

1. 1. π

   
   
   

   2. π / 2

   
   
   

   3. 0

   
   
   

   4. π / 3

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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