IB DP Physics Mock Exam SL Paper 2 Set 4 - 2025 Syllabus
IB DP Physics Mock Exam SL Paper 1B Set 4
Prepare for the IB DP Physics Mock Exam SL Paper 2 Set 4 with our comprehensive mock exam set 4. Test your knowledge and understanding of key concepts with challenging questions covering all essential topics. Identify areas for improvement and boost your confidence for the real exam
▶️ Answer/Explanation
(a)
From the graph for P at \(10\,V\), \(I = 200\,mA = 0.20\,A\).
\(R = \frac{V}{I} = \frac{10}{0.20} = 50\,\Omega\).
(b)
The resistance increases as the current increases, as shown by the decreasing gradient of the I–V graph.
(c)
The ammeter is in series with Q. From the graph for Q at \(V = 3.0\,V\), the current is \(120\,mA\).
(d)
Current in the series circuit \(I = 0.12\,A\).
Potential difference across P: \(V_{P} = IR_{P} = 0.12 \times 50 = 6.0\,V\).
\(\text{emf} = V_{P} + V_{Q} = 6.0 + 3.0 = 9.0\,V\).