S6_PHY_2_EXAM_2026.pdf

PHYSICS Paper 2 (Practical) Time: 2 Hours 45 minutes END ITEM 2 A small manufacturing workshop in Jinja produces electric immersion heaters used in homes and schools. The heating elements are made from resistance wires with specific electrical properties Recently, the workshop ran out of its usual supply of resistance wire and obtained a batch from a local dealer. However, the wires are not labelled, and their electrical properties are unknown. The technician is aware that for safe and efficient heater operation, the resistivity of the wire must lie within a range of 1.0 × 10⁻⁶ Ωm to 1.5 × 10⁻⁶ Ωm. You have been provided with a sample of the wire and standard laboratory equipment, including a meter bridge Uganda Advanced Certificate of Education Task Design and carry out an investigation and use your results to advise whether the mirror is suitable for use in the clinic. INSTRUCTIONS TO CANDIDATES • The paper consists of two examination items • Attempt only one 1 Task Plan and carry out an investigation using a meter bridge and any other available apparatus to determine the suitability of the sample of wire given to you. KAMSSA PRE MOCK EXAMINATIONS 2026 ITEM 1 A health centre in Arua has recently expanded its eye care services. To improve diagnosis of eye conditions, the clinic uses concave mirrors to examine small features of the eye. A new set of mirrors was supplied to the clinic, but their specifications were not provided. The medical team is concerned because for effect