Physics · DC Generators
A DC shunt generator builds up to 230 V. Other conditions remaining the same, if only the residual magnetism of the machine is reversed, the voltage to which the generator will build up is:
- 1230 V with brush polarity reversed✓
- 2230 V with brush polarity remaining the same
- 3somewhat less than 230 V with brush polarity reversed
- 40 V as it will fail to build up voltage
Correct answer
230 V with brush polarity reversed
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