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Current Electricity Quiz

Practice quiz on Current Electricity (Physics). 5 questions.

25
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25
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About This Quiz

Practice quiz on Current Electricity (Physics). 5 questions. Current Electricity Quiz is a free, 25-minute, 25-mark practice quiz on AajExam rated at medium difficulty, designed to help candidates preparing for SSC, UPSC, Banking, Railway and State PSC government competitive exams sharpen their command of Current Electricity (Physics). Every question on this quiz ships with a detailed step-by-step solution so you don't just learn the right answer — you learn the reasoning and shortcuts top scorers use to crack similar questions faster on the actual exam day. Why Current Electricity Quiz matters in your preparation: government exam-conducting bodies repeatedly draw questions from the same chapters and the same skill-clusters across recruitment cycles. By attempting focused topic-wise quizzes like this one, you build pattern recognition — the ability to spot which formula, rule or trick applies the moment you see a question. Toppers consistently report that 5-10 quizzes on a single topic delivers more exam-day score gain than 20+ unfocused full-length mocks, because targeted drilling exposes your specific sub-topic weaknesses with surgical precision. How to use this quiz effectively: attempt it in one sitting under the 25-minute timer, without referring to notes or external resources — simulate exam-day conditions exactly. After submission, review the auto-generated analytics to see your accuracy, time per question and section-wise performance. Then go through every wrong and skipped question with the explanation, mentally tagging the underlying concept rather than just memorising the answer. Revisit this quiz after 7-10 days; your second attempt should be 15-20% faster with noticeably better accuracy. Bookmark this page and revisit weekly as we add new quizzes on related topics. AajExam quiz design principles: every quiz on the platform is curated by subject experts using the actual question formats, difficulty distributions and time pressures of the target government exams. We deliberately avoid generic "textbook" questions in favour of exam-replicating ones. Solutions are written in plain English (and Hindi where source material was bilingual), with step-by-step working for quantitative problems, grammar rules for English questions, and direct reference statements for general awareness items. Performance analytics after each attempt include accuracy, attempt rate, time spent per question, and an estimated all-India percentile so you know exactly where you stand against other candidates. This quiz is completely free to attempt. You only need a free AajExam account to track your performance across attempts, view detailed solutions and unlock the platform-wide analytics dashboard. The platform is mobile-friendly and works seamlessly on smartphones, tablets and desktops — so you can sharpen your Current Electricity (Physics) skills in any spare 15-minute window.

Current Electricity Quiz — Questions with Solutions

All 25 questions from this quiz with the correct answer and explanation. Attempt them yourself first, then open each solution to check your reasoning.

  1. Q1.Ohms Law?

    • A.V = IR
    • B.V = I/R
    • C.V = I+R
    • D.V = I-R
    Show answer

    Answer: A. V = IR

    Voltage = Current x Resistance.

  2. Q2.SI unit of current?

    • A.Ampere
    • B.Volt
    • C.Ohm
    • D.Watt
    Show answer

    Answer: A. Ampere

    Measures current flow.

  3. Q3.Best conductor?

    • A.Silver
    • B.Copper
    • C.Gold
    • D.Aluminium
    Show answer

    Answer: A. Silver

    Highest conductivity.

  4. Q4.Resistance unit?

    • A.Ohm
    • B.Ampere
    • C.Volt
    • D.Watt
    Show answer

    Answer: A. Ohm

    Named after Georg Ohm.

  5. Q5.Series circuit current?

    • A.Same throughout
    • B.Different at each point
    • C.Zero
    • D.Infinite
    Show answer

    Answer: A. Same throughout

    Current is constant.

  6. Q6.Ohm's Law is expressed as V equals:

    • A.I times R
    • B.I plus R
    • C.I divided by R
    • D.I minus R
    Show answer

    Answer: A. I times R

    Ohm's law states V=IR.

  7. Q7.The SI unit of electric charge is:

    • A.Ampere
    • B.Coulomb
    • C.Volt
    • D.Ohm
    Show answer

    Answer: B. Coulomb

    Electric charge is measured in Coulombs.

  8. Q8.The SI unit of electrical power is:

    • A.Volt
    • B.Ampere
    • C.Watt
    • D.Ohm
    Show answer

    Answer: C. Watt

    Electrical power is measured in Watts.

  9. Q9.In a series circuit, the current is:

    • A.Different in each component
    • B.Same throughout the circuit
    • C.Zero everywhere
    • D.Doubled at each point
    Show answer

    Answer: B. Same throughout the circuit

    In a series circuit, the same current flows through all components.

  10. Q10.In a parallel circuit, the voltage across each branch is:

    • A.Different for each branch
    • B.The same
    • C.Always zero
    • D.Undefined
    Show answer

    Answer: B. The same

    Parallel branches share the same voltage across them.

  11. Q11.A device that converts electrical energy mainly into heat is a:

    • A.Motor
    • B.Heater
    • C.Generator
    • D.Transformer
    Show answer

    Answer: B. Heater

    An electric heater converts electrical energy into heat.

  12. Q12.The instrument used to measure voltage is a:

    • A.Ammeter
    • B.Voltmeter
    • C.Galvanometer only
    • D.Barometer
    Show answer

    Answer: B. Voltmeter

    A voltmeter measures potential difference (voltage).

  13. Q13.Fuse wire is made of a material with a:

    • A.High melting point
    • B.Low melting point
    • C.High resistance only
    • D.Zero resistance
    Show answer

    Answer: B. Low melting point

    Fuse wires have a low melting point so they melt and break the circuit during overcurrent.

  14. Q14.The resistance of most conductors increases with an increase in:

    • A.Length only
    • B.Temperature
    • C.Cross-sectional area
    • D.Voltage
    Show answer

    Answer: B. Temperature

    Resistance of conductors generally rises as temperature increases.

  15. Q15.1 kWh (unit) of electrical energy is equal to the energy consumed by a:

    • A.1000 W appliance running for 1 hour
    • B.1 W appliance running for 1000 hours
    • C.100 W appliance for 10 hours
    • D.Both A and C
    Show answer

    Answer: D. Both A and C

    1 kWh = 1000 watts for 1 hour, which equals 100W for 10 hours.

  16. Q16.Which of the following is commonly used as a good conductor of electricity?

    • A.Rubber
    • B.Copper
    • C.Wood
    • D.Plastic
    Show answer

    Answer: B. Copper

    Copper is widely used as an electrical conductor due to low resistance.

  17. Q17.A device used to increase or decrease AC voltage is called a:

    • A.Generator
    • B.Transformer
    • C.Rectifier
    • D.Capacitor
    Show answer

    Answer: B. Transformer

    Transformers step voltage up or down in AC circuits.

  18. Q18.In household electrical wiring, appliances are generally connected in:

    • A.Series
    • B.Parallel
    • C.Neither series nor parallel
    • D.Mixed randomly
    Show answer

    Answer: B. Parallel

    Parallel wiring lets each appliance operate independently at full voltage.

  19. Q19.The direction of conventional current is taken from the:

    • A.Negative to positive terminal externally
    • B.Positive to negative terminal externally
    • C.Positive to positive terminal
    • D.There is no defined direction
    Show answer

    Answer: B. Positive to negative terminal externally

    Conventional current flows from positive to negative terminal outside the source.

  20. Q20.Which of the following is an electrical insulator?

    • A.Copper
    • B.Aluminium
    • C.Rubber
    • D.Iron
    Show answer

    Answer: C. Rubber

    Rubber does not conduct electricity and is used as insulation.

  21. Q21.The SI unit of electrical resistance is the:

    • A.Volt
    • B.Ampere
    • C.Ohm
    • D.Watt
    Show answer

    Answer: C. Ohm

    Resistance is measured in Ohms.

  22. Q22.A galvanometer is primarily used to detect:

    • A.Voltage only
    • B.Small electric currents
    • C.Resistance only
    • D.Magnetic fields only
    Show answer

    Answer: B. Small electric currents

    A galvanometer detects and measures small electric currents.

  23. Q23.The heating effect of electric current is used in a/an:

    • A.Electric iron
    • B.Electric motor
    • C.Generator
    • D.Transformer
    Show answer

    Answer: A. Electric iron

    Electric irons use the heating effect of current to generate heat.

  24. Q24.The formula for electrical power is:

    • A.P = V times I
    • B.P = V plus I
    • C.P = V divided by I
    • D.P = V minus I
    Show answer

    Answer: A. P = V times I

    Electrical power equals voltage multiplied by current.

  25. Q25.A short circuit typically occurs when:

    • A.Resistance in the circuit becomes very high
    • B.Live and neutral wires touch directly, creating very low resistance
    • C.The circuit is switched off
    • D.Voltage drops to zero
    Show answer

    Answer: B. Live and neutral wires touch directly, creating very low resistance

    A short circuit happens when a low-resistance path forms between live and neutral wires.

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Frequently Asked Questions

Is Current Electricity Quiz free to attempt on AajExam?

Yes. Current Electricity Quiz is completely free. You only need a free AajExam account to track your score, view detailed solutions and unlock cross-attempt analytics.

How long does it take to complete Current Electricity Quiz?

Current Electricity Quiz runs on a 25-minute timer in real exam-style conditions. The clock starts the moment you click Start, mirroring the time pressure of the actual exam.

Are detailed solutions provided?

Yes. Every question on Current Electricity Quiz ships with a complete step-by-step solution, the underlying concept, and (where applicable) shortcut tricks. You can also discuss any question with the AajExam community.

Can I attempt Current Electricity Quiz multiple times?

Yes. You can attempt this quiz as many times as you like. Each attempt is recorded separately so you can track improvement in score, accuracy and time-management.

Which government exams does this quiz prepare me for?

Current Electricity questions appear regularly in SSC CGL, CHSL, MTS, GD; IBPS PO, Clerk; SBI PO, Clerk; RRB NTPC, Group D; UPSC prelims and most State PSC exams. The specific weightage varies by exam — check the exam pattern on the corresponding AajExam exam page for details.