Kirchoff's laws are applicable to

Options

A. A.C. only
B. D.C . Only
C. Both (a ) and (b)
D. Intermittant currents only

Answer

To solve the question regarding the applicability of Kirchhoff's laws, let's break it down step by step.

### Step-by-Step Solution:

1. **Understanding Kirchhoff's Laws**:
- Kirchhoff's laws consist of two main principles: Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL).
- KCL states that the total current entering a junction equals the total current leaving the junction. Mathematically, this can be expressed as:
\[ \sum I_{\text{in}} = \sum I_{\text{out}} \]
- KVL states that the sum of the electrical potential differences (voltage) around any closed network is zero. This can be expressed as:
\[ \sum V = 0 \]

2. **Identifying the Types of Current**:
- The question provides four options regarding the types of current to which Kirchhoff's laws apply:
- A) AC only
- B) DC only
- C) Both A and B
- D) Intermittent current only

3. **Analyzing the Applicability**:
- Kirchhoff's laws are based on the conservation of charge and energy, which holds true for both AC (Alternating Current) and DC (Direct Current).
- Therefore, both types of current can utilize Kirchhoff's laws effectively.

4. **Conclusion**:
- Since Kirchhoff's laws apply to both AC and DC currents, the correct option is:
\[ \text{Option C: Both A and B} \]