Hello i am new here but i am having a hard time with some questions if you can please help me. And by the way the circuit should be using CMOS 4011 logic gates.
1. Explain, in general terms, how the burglar alarm works.
2. Draw a neat circuit diagram for the burglar alarm. (Including a Buzzer & a transistor)
3. Explain the purpose of the pull down resistors.(connected to the switches)
4. Explain why unused NAND gates have their inputs connected high.
5. Explain why the transistor was needed when we switched from an LED to a buzzer.
6. Explain why we needed to add resistors to the circuit when we added the light dependent resistor (LDR) to detect the laser beam.
1. Explain, in general terms, how the burglar alarm works.
2. Draw a neat circuit diagram for the burglar alarm. (Including a Buzzer & a transistor)
3. Explain the purpose of the pull down resistors.(connected to the switches)
4. Explain why unused NAND gates have their inputs connected high.
5. Explain why the transistor was needed when we switched from an LED to a buzzer.
6. Explain why we needed to add resistors to the circuit when we added the light dependent resistor (LDR) to detect the laser beam.