Current Electricity, Thermal & Chemical Effect Of Current Test Online MCQs
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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
Test Help For
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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. mark reviewThe value of current i in the circuit as shown in figure is:

012

Question 1 of 15

2. mark reviewA 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 2 of 15

3. mark reviewWhen the key K is passed at t = 0, which of the following statements about the current 1 in the resistor AB of the given circuit is ture?

 

27

Question 3 of 15

4. mark reviewThe resistance between points A and B is

 

29

Question 4 of 15

5. mark reviewTwo sources of equal emf are connected to an external resistance R. The internal resistance of the two sources are R₁ and R₂ (R₂ > R₁). If the potential difference across the source having internal resistance R₂ is zero, then

 

Question 5 of 15

6. mark reviewThe internal resistance of a cell is the resistance of: 

 

Question 6 of 15

7. mark reviewThe current in the given circuit is:

 

21

Question 7 of 15

8. mark reviewA wire of length L is drawn such that its diameter is reduced to half of its original diameter. If the initial resistance of the wire were 10 Ω, its new resistance would be:

 

Question 8 of 15

9. mark reviewThe temperature of the cold junction of a thermocouple is 0°C and the temperature of the hot junction is T°C. The relation for the thermo emf is given by; E = AT – ½ BT² (when A = 16 and B = 0.08). The temperature of inversion will be:

 

Question 9 of 15

10. mark reviewIn the given figure, the equivalent resistance between two points A and B will be:

 

 

98

Question 10 of 15

11. mark reviewThe 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 11 of 15

12. mark reviewA moving coil galvanometer is converted into an ammeter reads up to 0.03 A by connecting a shunt of resistance 4r across it and ammeter reads up to 0.06 A, when a shunt of resistance r is used. What is the maximum current which can be sent through this galvanometer is no shunt is used?

 

Question 12 of 15

13. mark reviewIn the figure shown, the capacity of the condenser C is 2μF. The current in 2Ω resistance is

 

25

Question 13 of 15

14. mark reviewThe electro-chemical equivalent of a substance in numerical equal to the mass of the substance deposited if a current I flows through the electrolyte for 0.25 seconds. The value of I is:

 

Question 14 of 15

15. mark reviewTwo 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 15 of 15


 

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