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Current Electricity, Thermal & Chemical Effect of Current Test Online MCQs

Test Name Current Electricity, Thermal & Chemical Effect of Current MCQs Test
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Multiple Choice Questions about the topic of Current Electricity, Thermal & Chemical Effect of Current. Attempt all the questions for the preparation of physic subject test, admission test, engineering test and medical test. Current Electricity, Thermal & Chemical Effect of Current Test Online MCQs below.

Current Electricity, Thermal & Chemical Effect of Current Test Online MCQs

Physics

1. A battery of e.m.f. 20 V and internal resistance 6Ω is connected to a resistor as shown in figure. If the current in the circuit is 1 amp, the resistance of the resistor will be:

 

 

20

Question 1 of 15

2. Two identical galvanometers are taken, one is to be converted into an ammeter and other into a milliammeter. Shunt of milliammeter compared to ammeter is

 

Question 2 of 15

3. A electric bulb marked 40 W and 200V, is used in a circuit of supply voltage 100V. Now its power is:

 

Question 3 of 15

4. A wire of radius r has resistance R. If it is stretched to a radius r/2, its resistance will be:

 

Question 4 of 15

5. The cell has an emf of 2V and the internal resistance of this cell is 0.1 Ω, it is connected a resistance of 3.9 Ω. The voltage across the cell will be:

 

Question 5 of 15

6. In the figure shown, the capacity of the condenser C is 2μF. The current in 2Ω resistance is

 

25

Question 6 of 15

7. In the given figure, the equivalent resistance between two points A and B will be:

 

 

98

Question 7 of 15

8. The internal resistance of a cell is the resistance of: 

 

Question 8 of 15

9. The resistance between points A and B is

 

29

Question 9 of 15

10. Two filaments of same length are connected first in series then in parallel. For the same amount of main current flowing, the ratio of the heat produced is:

 

Question 10 of 15

11. What is the equivalent resistance across A and B in the figure shown, if R = 3Ω?

 

28

Question 11 of 15

12. For ensuring dissipation of same energy in all three resistors (R₁, R₂, R₃) connected as shown in figure, their values must be related as:

 

24

Question 12 of 15

13. Electroplating is not provided to be used for

 

Question 13 of 15

14. The resistance of a galvanometer is 50 Ω and current required to give full scale deflection is 100 μA in order to convert it into an ammeter for reading up to 10A. It is necessary to put an resistance of

 

Question 14 of 15

15. Same length of two identical wires are first connected is series and then in parallel, then the amount of heat produced in both the conditions are in the ratio:

 

Question 15 of 15


 

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