Two metallic rods of length L = 40 cm and unknown linear mass density 2 are suspended from a support using lightweight strings of length s = 8 cm, as shown in the diagram (a) below. The rods are then connected to a circuit in such a way that same current I = 20 A passes through both rods, but flows in opposite directions. When connected in such a way, the rods move away from each other and at equilibrium are separated by a distance r = 2 cm (diagram b). What is the linear mass density 1 (in kg/m) of the rods?
Attached is a picture of question.
Help would be appreciated
Attached is a picture of question.
Help would be appreciated
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