State the rule to determine the direction of a (i) magnetic field produced around a straight conductor-carrying current, (ii) force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it, and (iii) current induced in a coil due to its rotation in a magnetic field.
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90) Which of the following liquid insecticide is used for
Malaria vector control as per WHO guidelines?
A) Sodium chloride
B) Sodium bicarbonate
C) DDT
D) Acetic acid
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