Electricity & Magnetism Questions with Solutions
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.
- Q1.
Which instrument is used to measure the electric current in a circuit?
A. AmmeterB. PotentiometerC. OhmmeterD. VoltmetereasyAsked in Railway +2View solution › - Q2.
A freely suspended bar magnet always comes to rest in which direction?
A. North-East to South-WestB. East-WestC. North-SouthD. Any directioneasyAsked in SSC +1View solution › - Q3.
The process of depositing a layer of a desired metal on another material by means of electricity is called:
A. Electrolysis of waterB. AnodisingC. ElectroplatingD. GalvanisationeasyAsked in Railway +1View solution › - Q4.
Which instrument is used to detect the presence of an electric current in a circuit?
A. VoltmeterB. GalvanometerC. BarometerD. OhmmetereasyAsked in Police +1View solution › - Q5.
Which rule is used to find the direction of the magnetic field around a straight current-carrying conductor?
A. Fleming's left-hand ruleB. Maxwell's corkscrew rule (right-hand thumb rule)C. Lenz's lawD. Fleming's right-hand rulemediumAsked in SSC +1View solution ›