Concept explainers
That factor of change in output torque.
Answer to Problem 57P
The output torque also drops by 12% .
Explanation of Solution
Given:
The current in the motor decreases by
Formula used:
The torque of a coil having N loops in a magnetic field is given by,
Here,
I is the current
A is the area of coil
B is the magnetic field strength.
Calculation:
From the above equation, it is observed that the torque is proportional to the current.
So, if current decreases by
The
Conclusion:
The output torque reduces by 12%.
Chapter 20 Solutions
Physics: Principles with Applications
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