Sakil Ahmed Classes

HSLC EXAM QUESTIONS – ELECTRICITY MCQ & Very Short Questions (1 Mark Each) Answers are provided after each question. 1. The unit of specific resistance of a material in S.I. system is (a) Ω  (b) Ωm  (c) Ωm⁻¹  (d) Ωm² ✅ Answer: (b) Ωm 2. A piece of wire of resistance 2 Ω is cut into four equal parts. These are connected in parallel. If R is the equivalent resistance, then (a) 16  (b) 1/16  (c) 1/8  (d) 8 ✅ Answer: (b) 1/16 Ω 3. Two wires have lengths, resistances and resistivities in the ratio 1 : 2. What is the ratio of diameters? (a) 1 : 2  (b) 1 : 4  (c) 4 : 1  (d) 1 : √2 ✅ Answer: (d) 1 : √2 4. Which of the following does NOT represent electrical power? (i) IR²  (ii) I²R  (iii) V²/R  (iv) VI Options: (a) IR² only  (b) I²R  (c) V²/R  (d) VI ✅ Answer: (a) IR² (This is incorrect dimensionally.) 5. The SI unit of electric charge is (a) coulomb  (b) volt  (c) watt  (d) joule ✅ Answer: (a) coulomb 6. Which of the following is used to measure potential differ...