Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > A galvanometer with a full scale current of 1...
Start Learning for Free
A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer is
- a)11
- b)110
- c)1110
- d)1100
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A galvanometer with a full scale current of 10 mA has a resistance of ...
Rsh= R/(m−1) ⇒ 50 = 500/(m−1) ⇒ m = 11
Free Test
FREE
| Start Free Test |
Community Answer
A galvanometer with a full scale current of 10 mA has a resistance of ...
Understanding the Galvanometer Setup
A galvanometer is a sensitive device used to detect and measure small electric currents. In this case, we are analyzing a galvanometer with the following specifications:
- Full scale current: 10 mA
- Resistance of the galvanometer (Rg): 500 Ω
To extend the range of this galvanometer, a shunt resistor (Rs) is used. Here, we have a shunt of 50 Ω.
Calculating the Shunt Resistor's Effect
The shunt resistor allows a portion of the current to bypass the galvanometer, thus preventing it from exceeding its full-scale reading. The total current (I) that flows through the circuit is divided between the galvanometer (Ig) and the shunt (Is):
- Total current (I) = Ig + Is
Using the known full-scale current of the galvanometer:
- Ig = 10 mA = 0.01 A
The current flowing through the shunt can be calculated using Ohm's law.
Determining the Multiplying Power
The multiplying power (M) is defined as the ratio of the total current to the full-scale current of the galvanometer:
M = I / Ig
To find the total current (I), we can use the voltage across both resistors. The voltage across the galvanometer is:
Vg = Ig * Rg = 0.01 A * 500 Ω = 5 V
The same voltage appears across the shunt resistor:
V = Is * Rs
From this, we can find Is:
5 V = Is * 50 Ω
Is = 5 V / 50 Ω = 0.1 A
Now, calculate the total current:
I = Ig + Is = 0.01 A + 0.1 A = 0.11 A
Now, we can find the multiplying power:
M = I / Ig = 0.11 A / 0.01 A = 11
Conclusion
Thus, the multiplying power of the 50 Ω shunt with this galvanometer is 11, confirming that the correct answer is option 'A'.
A galvanometer is a sensitive device used to detect and measure small electric currents. In this case, we are analyzing a galvanometer with the following specifications:
- Full scale current: 10 mA
- Resistance of the galvanometer (Rg): 500 Ω
To extend the range of this galvanometer, a shunt resistor (Rs) is used. Here, we have a shunt of 50 Ω.
Calculating the Shunt Resistor's Effect
The shunt resistor allows a portion of the current to bypass the galvanometer, thus preventing it from exceeding its full-scale reading. The total current (I) that flows through the circuit is divided between the galvanometer (Ig) and the shunt (Is):
- Total current (I) = Ig + Is
Using the known full-scale current of the galvanometer:
- Ig = 10 mA = 0.01 A
The current flowing through the shunt can be calculated using Ohm's law.
Determining the Multiplying Power
The multiplying power (M) is defined as the ratio of the total current to the full-scale current of the galvanometer:
M = I / Ig
To find the total current (I), we can use the voltage across both resistors. The voltage across the galvanometer is:
Vg = Ig * Rg = 0.01 A * 500 Ω = 5 V
The same voltage appears across the shunt resistor:
V = Is * Rs
From this, we can find Is:
5 V = Is * 50 Ω
Is = 5 V / 50 Ω = 0.1 A
Now, calculate the total current:
I = Ig + Is = 0.01 A + 0.1 A = 0.11 A
Now, we can find the multiplying power:
M = I / Ig = 0.11 A / 0.01 A = 11
Conclusion
Thus, the multiplying power of the 50 Ω shunt with this galvanometer is 11, confirming that the correct answer is option 'A'.
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer?
Question Description
A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer?.
A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer?.
Solutions for A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer?, a detailed solution for A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A galvanometer with a full scale current of 10 mA has a resistance of 500Ω. The multiplying power of 50Ω shunt with this galvanometer isa)11b)110c)1110d)1100Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup