Question: 2. The following problems refer to Fig. 4; selected capacitors will have a variable capacitance; thus, answering these will involve the techniques of evaluating limits.

2. The following problems refer to Fig. 4; selected capacitors will have a variable capacitance; thus, answering these will involve the techniques of evaluating limits. Tips for handling the process: show the initial algebraic expressions for C- (the total capacitance) identify constant quantities and the quantity that changes Identify the resulting algebraic function (rational or polynomial) Evaluate the expressions by lugging in either 0 or infinity for the variable capacitor. a) Suppose that C, and C, have constant capacitance by C; has a variable capacitance. What is C- if C, - co? . What is C if C, - 0? b) Suppose that C, and C; have constant capacitances by C2 has a variable capacitance. What is C, if C - 0? What is C- if C, - co

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