Why is a generator armature more difficult to rotate when it is connected to and supplying
To Explain: A generator armature is difficult to rotate when it is connected to the circuit and supplying electric current.
Answer to Problem 32A
The more work is required to rotate the armature against the opposing forces of electromagnets.
Explanation of Solution
Introduction:
The rotation of the armature is harder because when it is connected to the circuit and supplying the electric current then in that case, the armature has to work in the magnetic field produced by a current-carrying coil.
As the current increases in the circuit, the opposition decreases, and the amount of work done also increases to spin the armature. The work done in rotating the armature goes into the electrical energy supplied to the external circuit.
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