Two identical conductors \(P\) and \(Q\) are placed on two frictionless fixed conducting rails \....

Two identical conductors \(P\) and \(Q\) are placed on two frictionless fixed conducting rails \(R\) and \(S\) in a uniform magnetic field directed into the plane. If \(P\) is moved in the direction shown in figure with a constant speed, then \(\operatorname{rod} Q\)