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QPages 198-203: Q17: HC Verma: Concepts of Physics - Volume 2 Electric Current in Conductors Pages 198-203: Q17 Solution: The potential difference between the terminals of a battery of…
⚠️ Common Exam Traps & Conceptual Pitfalls
Students frequently treat the battery’s emf as the voltage across the external resistor, forgetting the internal‑resistance drop. Use the terminal voltage $V_{term}=ε- Ir$ (the given 5.8 V) to find the current, then compute $R=V_{term}/I$; do not substitute the emf directly into $V=IR$.
The potential difference between the terminals of a battery of emf 6.0 V and internal resistance drops to 5.8 V when connected across an external resistor. Find the resistance of the external resistor.
Step-by-Step Verified Solution
**Answer:** .
**Step-by-Step Explanation:**
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