1) In which direction must there be a current in the cable to exert an upward force on the rod? A)Right. B) Left C) It should frequently change its direction. D) None of these2) With proper current in the cable, the rod can be lifted such that there is no tension in the connecting wires. The minimum current is?3) If the direction of current is reversed and valued of it is 2 times of I. What will be the tension in the vertical connecting wire?A)mg. B) 2mg. C) 3mg. D) None of these.

1) In which direction must there be a current in the cable to exert an

1.	1) In which direction must there be a current in the cable to exert an upward force on the rod? A)Right. B) Left C) It should frequently change its direction. D) None of these2) With proper current in the cable, the rod can be lifted such that there is no tension in the connecting wires. The minimum current is?3) If the direction of current is reversed and valued of it is 2 times of I. What will be the tension in the vertical connecting wire?A)mg. B) 2mg. C) 3mg. D) None of these.
Answer» 1) from left to rightExplanation:as PER RIGHT HAND thumbs RULE

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