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Chemical Effects of Electric Current and Its Applications Test Online MCQs

Test Name Chemical Effects of Electric Current and Its Applications Test
Subject Physics
Test Type MCQs
Total Question 20
Total Marks 40
Total Time 20 Mints
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Chemical Effects of Electric Current and Its Applications multiple choice questions are very important for the preparation of engineering test, admission test and recruitment test. increase your information about the Chemical Effects of Electric Current and Its Applications by attempting multiple choice questions below.

Chemical Effects of Electric Current and Its Applications Test Online MCQs

Physics

1. Mass of the ions liberated during electrolysis by 1 A current in one second is called:

Question 1 of 20

2. What is converted into heat when current is set up through a conductor?

Question 2 of 20

3. Silver and zinc voltameter are connected in series and same current s passed through both of them for same time. If x kg of silver is liberate than the amount of zinc liberated will be very near to:

Question 3 of 20

4. How much electric charge should pass through acidulated water to release 22.4 litre of hydrogen gas at NTP?

Question 4 of 20

5. The potential difference across a conductor is doubled, the rate of generation of heat will:

Question 5 of 20

6. Two similar head lights lamps are connected in parallel to each other. Together, they consume 48 W from a 6 V battery. What is the resistance of each filament?

Question 6 of 20

7. What carries current in an electrolyte?

Question 7 of 20

8. Voltameter cannot be used to measure:

Question 8 of 20

9. When a 40 watt lamp is connected in series  with a 100 watt lamp across a 220 V supply, which one glows brighter?

Question 9 of 20

10. What determines the emf between the two metals placed in an electrolyte?

Question 10 of 20

11. If the current in a conductor is doubled, the rate of rise of temperature in the conductor will be assuming that there is no loss of heat from the conductor

Question 11 of 20

12. A motor starter is a:

Question 12 of 20

13. A constant potential difference is applied across the ends of a wire. Which one of the following operations will reduce the rate of heat generation to half?

Question 13 of 20

14. Same current is being passed through a copper voltameter and a silver voltameter. The rate of increase in weights of the cathodes in the two voltameters will be proportional to:

Question 14 of 20

15. If 1 A of current is passed through CuSO4 solution for 10 seconds, then the number of copper ions deposited at the cathode will be about:

Question 15 of 20

16. What are the essential requirements for the heater filament?

Question 16 of 20

17. The resistance of a wire is 10Ω. It is stretched so as to reduce its diameter to half. The resistance f the wire will now be:

Question 17 of 20

18. A lamp is marked 60 W, 220 V. If it operates at 200 V, the rate of consumption of energy will:

Question 18 of 20

19. How many lamps each of 50 W from a 100 V can be connected in parallel across a 120 V battery of internal resistance 10Ω, so that each glows to full power?

Question 19 of 20

20. Resistance of conductor is doubled keeping the potential difference across it constant. The rate of generation of heat will:

Question 20 of 20


 

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