Grade 1 Physics Quiz: Common mode and Difference mode analysis

What is common mode analysis?

• A method used to analyze the behavior of a circuit or system when no signal is applied to any inputs or components.

• A method used to analyze the behavior of a circuit or system when different signals are applied to all inputs or components.

• A method used to analyze the behavior of a circuit or system when the same signal is applied to all inputs or components.

• A method used to analyze the behavior of a circuit or system when the signal is only applied to one input or component.

What is difference mode analysis?

• A method used to analyze the maximum of signals between two points or components.

• A method used to analyze the average of signals between two points or components.

• A method used to analyze the difference in signals between two points or components.

• A method used to analyze the sum of signals between two points or components.

Can you give an example of common mode signal?

• A voltage spike on only one input terminal of a device

• A constant voltage on one input terminal and a voltage spike on the other

• A voltage spike on both input terminals of a device

• A decrease in voltage on both input terminals of a device

Can you give an example of difference mode signal?

• Current difference between two points in a circuit

• Resistance difference between two points in a circuit

• Frequency difference between two points in a circuit

• Voltage difference between two points in a circuit

How do you analyze common mode signals in multistage amplifiers?

• Use techniques such as single mode analysis and CMRR calculation

• Use techniques such as frequency mode analysis and simulation using software tools like MATLAB

• Use techniques such as common mode rejection and simulation using software tools like Excel

• Use techniques such as differential mode analysis, CMRR calculation, and simulation using software tools like SPICE.

How do you analyze difference mode signals in multistage amplifiers?

• Subtracting the output of one stage from the input of the next stage

• Multiplying the output of one stage with the input of the next stage

• Dividing the output of one stage by the input of the next stage

• Adding the output of one stage to the input of the next stage

What are the characteristics of common mode signals?

• Different voltages with respect to ground on both signal lines

• Equal voltages with respect to ground on both signal lines

• Opposite voltages with respect to ground on both signal lines

• No voltage with respect to ground on both signal lines

What are the characteristics of difference mode signals?

• Opposite polarities and used to measure the sum of two signals

• No polarities and used to measure the difference between two signals

• Opposite polarities and used to measure the difference between two signals

• Same polarities and used to measure the sum of two signals