Concept explainers
The current for full scale deflection.
Answer to Problem 55P
The current for full scale deflection is
Explanation of Solution
Given:
The current ( I ) through the galvanometer coil is
Formula used:
The torque acting on it for full scale deflection is,
Here, B is the magnetic field, n is the number of turns, and a is the area.
Calculation:
The torque acting on the coil for full scale deflection is denoted by
Assume the magnetic field weaken to
Show the expression for the torque acting on the coil for full scale deflection as follows:
Equate Equation (1) and (2).
Conclusion:
Therefore, the current
Chapter 20 Solutions
Physics: Principles with Applications
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