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COPY: Physics Semester II Question Bank

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Questions and Answers

Explain the principles behind measuring DC voltage and current using a multimeter.

Multimeters measure voltage by comparing an unknown voltage to a known reference voltage, and measure current by passing it through a known resistance.

What are the advantages and disadvantages of a breadboard?

Advantages: Easy to use, no soldering required. Disadvantages: Limited current carrying capacity, can be less reliable.

Describe the types of soldering that use increasingly higher temperatures for stronger joints.

As the soldering types progress from hand soldering to wave soldering to reflow soldering, temperatures and joint strength increase.

Explain the principle of a Digital Multimeter (DMM) and describe the procedure for measuring resistance using DMM.

DMM converts analog signals to digital signals for measurement. To measure resistance, DMM applies a known voltage and measures the resulting current. Signup and view all the answers

Define what a breadboard is and explain how it is typically used.

A breadboard is a solderless device for prototyping circuits. Components are inserted into the board's holes and connected by metal strips. Signup and view all the answers

Discuss the principles of measurement and explain the significance of accuracy and resolution in a multimeter.

Principles of measurement ensure consistent and reliable readings. Accuracy indicates how close measurements are to the true value, while resolution determines the smallest change detectable by the instrument. Signup and view all the answers