**Short Questions**

Assume you have an OR gate with two inputs, A and B. Determine the output C, for the following cases: (a)A = 1, B = 0 (b)A = 0, B = 1 If either input is one, what is the output? |

Briefly introduce Boolean algebra. |

Define digital and analogue electronics. |

Define Truth table. |

Define AND operation. |

Define NAND Gate. |

Define NOR Gate. |

Define NOT Gate. |

Define OR operation. |

Explain the difference between analogue and digital electronics. |

How can you compare the logic operation X=A.B with usual operation of multiplication? |

How we can obtain NOT gate from NAND or NOR gate explain with the help of truth table? |

NAND gate is the reciprocal of AND gate. Discuss |

Show analogue signal of microphone. |

What are basic operations of digital electronics? |

What do you meant by logic gate? |

What is meant by logic operation? |

When a moving electron enters the magnetic field, it is deflected from its straight path. Name two factors which can enhance electron deflection. |

When electrons pass through two parallel plates having opposite charges, they are deflected towards the positively charged plate. What important characteristic of the electron can be inferred from this? |

Which gate perform logic complementations? |

Why TV and telephone signals has been transformed from analogue to digital? |

Write down the purpose of NOT Gate? |

Write down Truth table of AND gate. |

Write down Truth table of NAND gate. |

Write down Truth table of NOR gate. |

Write down Truth table of NOT gate. |

Write down Truth table of OR gate |

Write the importance of digital electronics? |

**Long Questions**

Describe, using one simple diagram in each case, what happens when a narrow beam of electrons is passed through (a) a uniform electric field (b) a uniform magnetic field. What do these results indicate about the charge on electron? |

Differentiate between analogue electronics and digital electronics. Write downnames of five analogue and five digital devices that are commonly used in everyday life. |

Discuss analogue and digital signals graphically? What are analogue and digital converters? |

Explain the working of different parts of oscilloscope. |

Name some uses of oscilloscope. |

What is electron gun? Describe the process of thermionic emission. |

What are the three universal Logic Gates? Give their symbols and truth tables. |

What are NAND and NOR gates? Give their symbols and truth tables. |

What do you understand by digital and analogue quantities? |

What is AND gate? Give its symbols and truth table. |

What is cathode ray oscilloscope? Explain the working of different parts of oscilloscope. |

What is electron gun? Describe the process of thermionic emission. |

What is NOT gate? Give its symbols and truth table. |

What is OR gate? Give its symbols and truth table. |

Write a note on the basic operations of digital electronics logic gates. |

Write down some benefits of using digital electronics over analogue electronics. |

Write the uses of logic gates with the help of examples. |

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