A metal wire PQ of mass 10 g lies at rest on two horizontal metal rails separated by 5 cm as shown in figure. A vertically downward magnetic field of magnitude of 0.80 T exists inthe space. The resistance of the circuit is slowly decreased and it is found that when the resistance goes below 20.0 
, the wire PQ starts sliding on the rails. The coefficient of friction between wires and rails is found to be 
. Find 
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, the wire PQ starts sliding on the rails. The coefficient of friction between wires and rails is found to be . Find Question ID - 153944 | SaraNextGen Top Answer A metal wire PQ of mass 10 g lies at rest on two horizontal metal rails separated by 5 cm as shown in figure. A vertically downward magnetic field of magnitude of 0.80 T exists inthe space. The resistance of the circuit is slowly decreased and it is found that when the resistance goes below 20.0 , the wire PQ starts sliding on the rails. The coefficient of friction between wires and rails is found to be . Find
A metal wire PQ of mass 10 g lies at rest on two horizontal metal rails separated by 5 cm as shown in figure. A vertically downward magnetic field of magnitude of 0.80 T exists inthe space. The resistance of the circuit is slowly decreased and it is found that when the resistance goes below 20.0 , the wire PQ starts sliding on the rails. The coefficient of friction between wires and rails is found to be . Find
