Punjab 10th Class Physics Chapter 5 Current Electricity Mcqs Test Online Punjab 10th Class Physics Chapter 5 Current Electricity Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator 5% Question 1 of 20Physics 1. The unit of current in known as: 1.Ohm 2.Electron 3.Ampere 4.Volt Question 1 of 20Question 2 of 20 2. When resistances are connected in series, the current passing through them is: 1.Zero 2.The same 3.Not the same4.Different Question 2 of 20Question 3 of 20 3. Current Flows through the filament of bulb due to: 1.x-rays 2. Protons only 3.Neutrons 4.Free electrons Question 3 of 20Question 4 of 20 4. As the temperature of a conductor rises, its resistance: 1.Does not change 2.Increases 3.None of these 4.Decreases Question 4 of 20Question 5 of 20 5. The first battery made in 1800 consisted of: 1.Zinc plates only 2.Copper and zinc plates soaked in saltwater 3.Copper and zinc plates 4.Copper plates only Question 5 of 20Question 6 of 20 6. When we double the voltage in a simple electric circuit, we double the: 1.Power 2.Current 3.Both a and b 4.Resistance Question 6 of 20Question 7 of 20 7. Electric potential and e.m.f: 1.Are the different terms 2.Have different unit 3.Both b and c4.Are the same terms Question 7 of 20Question 8 of 20 8. The combined resistance of two identical resistors, connected in series is 8 Ω. Their combined resistance in a parallel arrangement will be: 1.4 Ω 2.12 Ω3.8 Ω 4.2 Ω Question 8 of 20Question 9 of 20 9. The resistance of a wire is _____________ to its cross-section area: 1.Inversely proportional 2.Directly proportional 3.Equal 4.Not equalQuestion 9 of 20Question 10 of 20 10. Why should household appliances be connected in parallel with the voltage source? 1.To provide each appliance the same voltage as the power source 2.To increase the resistance of the circuit 3.To decrease the resistance of the circuit 4.To provide each appliance the same current as the power source Question 10 of 20Question 11 of 20 11. If we double both the current and the voltage in a circuit while keeping its resistance constant, the power: 1.Quarter 2.Remains unchanged 3.Halves 4.Doubles Question 11 of 20Question 12 of 20 12. Which of the following has the lowest specific resistance? 1.Copper 2.Aluminium 3.Silver 4.PlatinumQuestion 12 of 20Question 13 of 20 13. What is the power rating of a lamp connected to a 12 V source when it carries 2.5A? 1.14.5 W 2.4.8 W 3.60 W 4.30 W Question 13 of 20Question 14 of 20 14. What happens to the intensity or the brightness of the lamps are added: 1.Remains the same 2.Cannot be predicted 3.Increases 4.Decreases Question 14 of 20Question 15 of 20 15. Which statement is not true? In the equation V = IR: 1.The value of R is the same for every conductor 2.R is called the resistance of conductor 3.The value of R is different for different conductors 4.R is a proportionality constant Question 15 of 20Question 16 of 20 16. Which is not true? 1.The value of R (resistance) is different for each conductor 2.1 mega ohm = 1 x 10⁶ ohm3.The property which opposes the flow of current through a conductor is called its resistance 4.1 m A = 1 c 10³ ohm Question 16 of 20Question 17 of 20 17. An electric current in conductors is due to the flow of: 1.Free electrons 2.Negative ions 3.Positive ions 4.Positive charges Question 17 of 20Question 18 of 20 18. The equivalent resistance of a parallel combination is: 1.None of these 2.Equal to the sum of all the resistance 3.Is smaller than the smallest resistance of the combination 4.Is greater than the larger resistance of the combinationQuestion 18 of 20Question 19 of 20 19. In electrolytes, the flow of current is due to: 1.None of these 2.Both positive and negative charge 3.Only negative charge 4.Only positive charge Question 19 of 20Question 20 of 20 20. What is the voltage across a 6 Ω resistor when 3A of current passes through it? 1.9V 2.2V 3.18V 4.36VQuestion 20 of 20 Loading... Test By Subject Punjab Test By Topics 10th Class Physics You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.