3531. The direction of electric field due +0 positive charge is . (a) towards the charge (b) away from the charge (c) both (a) and (6) (d) none of the above Correct Answer: (b) away from the charge 3532. For open control system which of the following statements is incorrect ? (a) Less expensive (b) Construction is simple and maintenance easy (c) Recalibration is not required for maintaining the required quality of the output (d) Errors are caused by disturbances Correct Answer: (c) Recalibration is not required for maintaining the required quality of the output 3533. Electrical machines having power outputs ranging from a few kW upto approximately 250 kW may be classified as (a) medium size machines (b) small size machines (c) large size machines
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