1 kQ www 2 ΚΩ www µF 1.5 µF i(t) ( 1 kΩ (0.5 NEXXIS HEL+VO ⒸV (1) [0.5 μFX1.5 µF 3) Consider the circuit above. You should realize that the "bridge" of capacitors can be replaced by a single capacitor. a) What is the value of the single equivalent capacitor? b) Consider operation with i(t) = 0 and vi(t) = 0 for t≥ 0. The voltage vo(t) is known to be 1 volt at a time t = 0. Determine vo(t) for all t > 0. c) A different constraint is that sources i(t) and vi(t) are zero for t < 0 and that vo(0) = 0. Sources i(t) and vi(t) undergo step transitions of +1 mA and +1 volt, respectively, at time t

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### Electrical Circuits - Capacitor Replacement Analysis

#### Circuit Details

The circuit under consideration consists of the following components:

- A current source \[i_I(t)\]
- Four capacitors (Two 0.5 μF and two 1.5 μF) configured in a bridge arrangement
- Three resistors (Two 1 kΩ and one 2 kΩ)
- A voltage source \[v_I(t)\]

The objective is to replace the "bridge" of capacitors with a single equivalent capacitor and to analyze the circuit under given conditions.

#### Figure Description

**Circuit Diagram:**
- The circuit features a bridge arrangement with capacitors.
- Two 1 kΩ resistors are positioned at the left side before the capacitors.
- A 1.5 μF capacitor is connected in parallel with a series combination of a 0.5 μF capacitor and another 0.5 μF capacitor.
- Another 1.5 μF capacitor is connected parallel to the previous combination described above.
- A 2 kΩ resistor is present after the capacitors on the right side, following which a voltage output \(v_O\) is measured.
- A voltage input \(v_I(t)\) and current input \(i_I(t)\) are also applied in the circuit.

#### Questions and Analysis

1. **Determining the Single Equivalent Capacitor:**
   What is the value if the capacitor bridge is simplified to a single equivalent capacitor?

2. **Voltage \(v_O(t)\) Calculation for \(t ≥ 0\):**
   Consider operation where \(i_I(t) = 0\) and \(v_I(t) = 0\). The known initial condition is \(v_O(t) = 1\) volt at \(t = 0\). Calculate \(v_O(t)\) for all \(t > 0\).

3. **Step Transition Analysis:**
   If sources \(i_I(t)\) and \(v_I(t)\) are zero for \(t < 0\) and \(v_O(0) = 0\). Suppose \(i_I(t)\) and \(v_I(t)\) undergo step transitions of \(+1\) mA and \(+1\) volt respectively starting at \(t = 0\). Calculate \(v_O(t)\) for all times.

This circuit analysis reinforces understanding of capacitor replacement in a bridge configuration as well as
Transcribed Image Text:### Electrical Circuits - Capacitor Replacement Analysis #### Circuit Details The circuit under consideration consists of the following components: - A current source \[i_I(t)\] - Four capacitors (Two 0.5 μF and two 1.5 μF) configured in a bridge arrangement - Three resistors (Two 1 kΩ and one 2 kΩ) - A voltage source \[v_I(t)\] The objective is to replace the "bridge" of capacitors with a single equivalent capacitor and to analyze the circuit under given conditions. #### Figure Description **Circuit Diagram:** - The circuit features a bridge arrangement with capacitors. - Two 1 kΩ resistors are positioned at the left side before the capacitors. - A 1.5 μF capacitor is connected in parallel with a series combination of a 0.5 μF capacitor and another 0.5 μF capacitor. - Another 1.5 μF capacitor is connected parallel to the previous combination described above. - A 2 kΩ resistor is present after the capacitors on the right side, following which a voltage output \(v_O\) is measured. - A voltage input \(v_I(t)\) and current input \(i_I(t)\) are also applied in the circuit. #### Questions and Analysis 1. **Determining the Single Equivalent Capacitor:** What is the value if the capacitor bridge is simplified to a single equivalent capacitor? 2. **Voltage \(v_O(t)\) Calculation for \(t ≥ 0\):** Consider operation where \(i_I(t) = 0\) and \(v_I(t) = 0\). The known initial condition is \(v_O(t) = 1\) volt at \(t = 0\). Calculate \(v_O(t)\) for all \(t > 0\). 3. **Step Transition Analysis:** If sources \(i_I(t)\) and \(v_I(t)\) are zero for \(t < 0\) and \(v_O(0) = 0\). Suppose \(i_I(t)\) and \(v_I(t)\) undergo step transitions of \(+1\) mA and \(+1\) volt respectively starting at \(t = 0\). Calculate \(v_O(t)\) for all times. This circuit analysis reinforces understanding of capacitor replacement in a bridge configuration as well as
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