Current carriers in solid conductors are

Electricity & Magnetism — UPSSSC PET Preparation

This question tests your understanding of Electricity & Magnetism, a key topic in the UPSSSC PET General Knowledge section. The detailed solution above uses a step-by-step approach to show the reasoning, and where available, a shortcut that helps you solve similar questions in under 90 seconds during the actual exam.

This topic covers electric charge, current, voltage and resistance, Ohm's law, series and parallel circuits, electric power and energy, the heating effect of current, magnets and magnetic fields, electromagnetic induction, and devices such as motors, generators, transformers and fuses. Questions commonly ask about units (the ampere, volt, ohm and kilowatt-hour), why household appliances are connected in parallel, what a fuse is made of and why, and which device converts mechanical energy into electrical energy (a generator). Remember that a transformer works only with alternating current. Practise the electricity and magnetism questions below, written in the style of the general awareness sections of exams such as SSC, banking, railways, CUET GAT, MAH CET and CLAT. Each question comes with a detailed explanation that adds related facts, so every question helps you revise more than one point.