Question

A closed mesh has a potential \( V' \), current \( I \), and resistance \( R \). If \( V' = 0.5 \,\text{V} \), \( I = 0.1 \,\text{A} \), and \( R = 20 \,\Omega \), the total voltage \( V \) is:

• A. 0.5 V
• B. 2.0 V
• C. 2.5 V
• D. 5.0 V

Hint:

Total voltage is the sum of the source potential and the $IR$ drop.

Answer 1

The Correct Option is C

Step 1: Concept
Voltage in a closed mesh is given by $V = V' + IR$.
Step 2: Analysis
Given $V' = 0.5 \text{ V}$, $I = 0.1 \text{ A}$, and $R = 20 \text{ } \Omega$. $V = 0.5 + (0.1 \times 20)$.
Step 3: Conclusion
$V = 0.5 + 2.0 = 2.5 \text{ V}$.
Final Answer: (C)