30 Questions
What is the method used to convert solar/light energy into electric energy in a Wireless Sensor Network?
Photovoltaic Effect
How is electric current induced in a wire according to the text?
By moving a wire/coil inside a magnetic field
Which type of generator is produced when electricity is generated by rotating a magnet inside a coil of wire?
Alternator
What is the main source of heat used in a Thermoelectric Generator (TEG) according to the text?
Solar Energy
Which effect is used to harvest electromagnetic energy by inducing electric current in a wire?
Electromagnetic Effect
What is the most commonly used type of transducer according to the text?
Variable Resistance Transducer
What is the purpose of the Sensing Subsystem in a node architecture for wireless sensor networks?
Integrating sensors based on the application's requirements
What is the primary function of an ADC in the node architecture's Sensing Subsystem?
Quantizing analog signals
In the process of ADC conversion, what does the resolution of the ADC represent?
The number of bits used to encode the digital output
Why does the Nyquist rate alone not suffice in ADC conversion?
Due to noise and transmission error
What influences the allowable discrete values in quantizing an analog signal by an ADC?
Frequency and magnitude of the signal
What is the second step involved in converting an analog signal to a digital signal using an ADC?
Sampling frequency determination
What is one of the challenges in Wireless Sensor Networks due to multi-hop communication?
Increased latency
What is one strategy mentioned in the text for Adaptive Duty Cycling in Wireless Sensor Networks?
Not allowing all nodes to sleep simultaneously
How do Power Conservation Policies in Wireless Sensor Networks help conserve energy?
By switching off radios when not in use
Why is decentralized management preferred over centralized management in Wireless Sensor Networks despite potential performance differences?
Due to large-scale networks and energy constraints
In Wireless Sensor Networks, what is the purpose of using tow radios for Wake-up and demand Duty Cycling?
To use a low-power radio for receiving wakeup calls and a high-power radio for responses
Why is node cooperation required for efficient routing in Wireless Sensor Networks with multi-hop communication?
To identify optimal routes and act as relays for data transmission
Which scheduling algorithm is designed for time-sharing systems?
Round Robin Scheduling
What is the main difference between Round Robin and FCFS Scheduling?
Preemption in Round Robin
What is the purpose of a time quantum in Round Robin Scheduling?
To allocate a fixed time to each process
What characteristic of Round Robin Scheduling makes it suitable for real-time processing?
Preemption
Why is Round Robin Scheduling considered a fair algorithm for CPU allocation?
All processes get an equal share of CPU
Which scheduling algorithm responds to events within a specific time limit?
Round Robin Scheduling
What is one reason why it may be necessary to reprogram a wireless sensor network after deployment?
To make sure the network performs optimally
Why is manual replacement not a feasible option for reprogramming a deployed wireless sensor network?
Manual replacement can introduce new bugs
What is one key requirement for an operating system to support dynamic reprogramming of a wireless sensor network?
The capability to store updates in memory
Why is it important for an operating system to ensure that the updated software is indeed an updated version?
To minimize the number of bugs introduced during updating
What role does the clear separation between the application and the operating system play in dynamic reprogramming?
It helps in providing dynamic reprogramming support
Why do existing operating systems not provide support for collaborating with each other according to the text?
Existing systems do not offer the necessary support
Test your knowledge on thermoelectric energy harvesters, TEG (Thermoelectric Generators), wireless sensor networks, and the Photovoltaic Effect. Explore the connection of thermocouples in series and the conversion of solar energy into electric energy.
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