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Questions and Answers
What is the basic structure of a DC bridge and what is its purpose?
What is the basic structure of a DC bridge and what is its purpose?
The basic DC bridges consist of four resistive arms with a source of emf (a battery) and a null detector usually galvanometer or other sensitive current meter. They are generally used for the measurement of resistance values.
What are the types of DC bridges and what are their uses?
What are the types of DC bridges and what are their uses?
The types of DC Bridges are a) Wheatstone Bridge, which is used for measuring medium resistance values in the range of 1Ω to below megaohm, and b) Kelvin bridge.
Explain how the Wheatstone Bridge works and what condition indicates balance in the bridge?
Explain how the Wheatstone Bridge works and what condition indicates balance in the bridge?
The Wheatstone Bridge works by having the current through the galvanometer depend on potential difference between point (c) and (d). The bridge is said to be balance when potential difference across the galvanometer is zero volts, so there is no current through the galvanometer ($I_g = 0$).
What is the purpose of a null detector in a DC bridge?
What is the purpose of a null detector in a DC bridge?
What are the CLOs covered in the course related to DC and AC bridges operation and their application?
What are the CLOs covered in the course related to DC and AC bridges operation and their application?
What is the principle of operation for Resistance Temperature Detectors (RTD)?
What is the principle of operation for Resistance Temperature Detectors (RTD)?
What factor is the most important for Resistance Temperature Devices (RTD)?
What factor is the most important for Resistance Temperature Devices (RTD)?
Which type of device are Resistive Temperature Detectors (RTD)?
Which type of device are Resistive Temperature Detectors (RTD)?
What property of the metal in RTD is responsible for its operation?
What property of the metal in RTD is responsible for its operation?
What does an RTD capitalize on to measure temperature?
What does an RTD capitalize on to measure temperature?
What is the temperature coefficient for Resistance Temperature Devices (RTD)?
What is the temperature coefficient for Resistance Temperature Devices (RTD)?
What property of the metal in RTD is responsible for its operation?
What property of the metal in RTD is responsible for its operation?
What type of temperature coefficient does a Resistive Temperature Detector (RTD) have?
What type of temperature coefficient does a Resistive Temperature Detector (RTD) have?
What does an RTD capitalize on to measure temperature?
What does an RTD capitalize on to measure temperature?
What is the most important factor for Resistance Temperature Devices (RTD)?
What is the most important factor for Resistance Temperature Devices (RTD)?
