GATE Exam  >  GATE Questions  >   Identify the definition of sensitivity of a ... Start Learning for Free
Identify the definition of sensitivity of a galvanometer from the following.
  • a)
    Ratio of unit change in unknown resistance to the deflection in the galvanometer
  • b)
    Ratio of unit change in unknown resistance to twice the deflection in the galvanometer
  • c)
    Ratio of deflection in the galvanometer to the unit change in unknown resistance
  • d)
    Ratio of deflection in the galvanometer to half the unit change in unknown resistance
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Identify the definition of sensitivity of a galvanometer from the fol...
Sensitivity of a galvanometer is defined as the ratio of deflection in the galvanometer to the unit change in unknown resistance. The sensitivity of a galvanometer can be increased by increasing the number of turns, increasing the coil area, or using a strong magnet.
View all questions of this test
Most Upvoted Answer
Identify the definition of sensitivity of a galvanometer from the fol...
Definition of sensitivity of a galvanometer:

The sensitivity of a galvanometer is defined as the ratio of the deflection in the galvanometer to the unit change in the unknown resistance.

Explanation:

A galvanometer is an instrument used for detecting and measuring small electric currents. It consists of a coil of wire suspended in a magnetic field. When a current flows through the coil, it experiences a torque that causes it to rotate. The amount of rotation is proportional to the strength of the current.

The sensitivity of a galvanometer is a measure of how responsive it is to changes in the current. A more sensitive galvanometer will produce a greater deflection for a given change in the current.

The sensitivity of a galvanometer is determined by its construction and the strength of the magnetic field. It is usually expressed in terms of the number of divisions of the scale that correspond to a given change in the current.

Mathematically, the sensitivity of a galvanometer is given by the formula:

Sensitivity = Deflection in the galvanometer / Unit change in the unknown resistance

Where the deflection in the galvanometer is measured in divisions of the scale and the unit change in the unknown resistance is measured in ohms.

Conclusion:

The sensitivity of a galvanometer is an important parameter that determines its usefulness for measuring small currents. A more sensitive galvanometer is preferred for accurate measurements.
Explore Courses for GATE exam
Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer?
Question Description
Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for GATE. Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.
Here you can find the meaning of Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Identify the definition of sensitivity of a galvanometer from the following.a)Ratio of unit change in unknown resistance to the deflection in the galvanometerb)Ratio of unit change in unknown resistance to twice the deflection in the galvanometerc)Ratio of deflection in the galvanometer to the unit change in unknown resistanced)Ratio of deflection in the galvanometer to half the unit change in unknown resistanceCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice GATE tests.
Explore Courses for GATE exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev