/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 3 : Current Electricity This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 A 100 W, 220 V bulb has resistance 220 Ω 100 Ω 480 Ω 484 Ω 2 / 10 Temperature coefficient α is defined as Change in R per °C Fractional change in R per °C Ratio of R/T Constant ratio 3 / 10 The terminal potential difference is E – Ir E + Ir Ir E/I 4 / 10 Which device is non-ohmic? Resistor Filament bulb Metallic wire Copper strip 5 / 10 1 kWh equals 3.6×10⁵ J 36×10⁶ J 3.6×10⁶ J 3.6×10³ J 6 / 10 A 12 V battery sends 2 A current through a circuit. Power of battery = 6 W 12 W 24 W 48 W 7 / 10 The emf of a cell is Potential difference across terminals when no current flows Always equal to terminal voltage Always less than terminal voltage Always greater than terminal voltage 8 / 10 Ohm’s law states that V ∝ I when T constant I ∝ 1/V I = constant V independent of I 9 / 10 Conductivity of a material is reciprocal of Resistance Current density Resistivity Voltage 10 / 10 Two wires of same material have resistances 4 Ω and 9 Ω. Ratio of lengths if diameters same is 3 : 2 4 : 9 2 : 3 9 : 4 Your score is 0% Restart quiz
