NCERT/Class 10/Science/Electricity

Electricity

Class 10 · Science

150 questions50 easy50 medium50 hard

Sample Questions

Q1.In a parallel circuit, what is the same across all resistors?

  • ACurrent through each resistor
  • BPotential difference across each resistor
  • CResistance of each resistor
  • DPower consumed by each resistor

Q2.How much energy is equal to 1 kWh?

  • A3.6 × 10³ J
  • B3.6 × 10⁴ J
  • C3.6 × 10⁶ J
  • D3.6 × 10⁸ J

Q3.Which formula correctly represents electric power?

  • AP = V/I
  • BP = VI
  • CP = V + I
  • DP = V - I

Q4.In a series circuit of 2 Ω, 3 Ω, and 5 Ω, the voltage across the 5 Ω resistor is 10 V. What is the battery voltage?

  • A10 V
  • B20 V
  • C30 V
  • D50 V

Q5.In a series circuit with battery V and three resistors R1, R2, R3, the voltage across R2 is:

  • AV
  • BV × R2/(R1+R2+R3)
  • CV × (R1+R3)/(R1+R2+R3)
  • DV × R1/(R1+R2+R3)

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

AlloysAmmeterBalanced CircuitBattery EMFBulb BrightnessBulb PowerBulb ResistanceCalculationCharge CalculationCharge FlowCircuit ProtectionCommercial CalculationCommercial UnitConductorsConventional CurrentCost CalculationCurrentCurrent CalculationCurrent ChangeCurrent DistributionCurrent DivisionCurrent RatingCurrent-Heat RelationshipCurrent-Resistance RelationshipDefinitionDimensional AnalysisEMFElectric BulbElectric ChargeElectric CircuitElectric CurrentElectric Current MeasurementElectric EnergyElectric PowerElectric WorkElectrical TransmissionEnergy CalculationEnergy ConsumptionEnergy DissipationEquivalent ResistanceFormulaFuseGeometric Wire ProblemH = I²RtHeat CalculationHeating EffectHeating ElementInert GasInternal ResistanceJoule's HeatingJoule's LawJoule's law H = I²RtJoule's law of heatingMaximum Power TransferMaximum ResistanceMeasurement ErrorMinimum ResistanceNon-ohmic DevicesNumerical CalculationOhm's LawOhm's lawOpen CircuitP = I²RParallel BatteryParallel CircuitParallel ConnectionPotential DifferencePotential Difference MeasurementPower CalculationPower ComparisonPower DissipationPower DistributionPractical AdvantagesPractical ApplicationProportional ReasoningR = ρl/ARated ValuesRatio ProblemsResistanceResistance CalculationResistance FactorsResistivityResistivity FormulaRheostatSI UnitsSI unitsSeries BatterySeries CircuitSeries ConnectionSeries Voltage DivisionSeries-ParallelSeries-Parallel CircuitSeries-Parallel CombinationSeries-Parallel ComparisonTemperature DependenceTerminal VoltageTungstenUnit ConversionUnit PrefixV-I CharacteristicsV-I GraphVariable ResistanceVoltage CalculationVoltage ChangeVoltage DistributionVoltage DivisionVoltage Division RuleVoltage MeasurementVoltmeterWheatstone BridgeWork Calculationcommercial unit of energycross-sectional area calculationcurrent and powerelectric fuseelectric powerelectric power in serieselectricity tariffenergy cost calculationheat generatedheating element propertiesjoulekWhkWh billingmulti-appliance energy calculationnichrome alloynichrome vs copperparallel circuitrated vs actual powerresistance formularesistance from ratingresistivityresistivity formularesistivity of alloyssafety devicescaling analysisseries circuitunit conversionvoltage division

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