P, Q and R are long straight wires in air, carrying currents as shown. The force on Q is directed P Q R 20 A 40 A 60 A

P, Q and R long parallel straight wires in air, carrying currents as shown. The direction of resultant force on R is :-

In figure shows three long straight wires P, Q and R carrying currents normal to the plane of the paper. All three currents have the same magnitude. Which arrow best shows the direction of the resultant force on the wire P

In figure shows three long straight wires P, Q and R carrying currents normal to the plane of the paper. All three currents have the same magnitude. Which arrow best shows the direction of the resultant force on the wire P

a very long straight wire carries a current I. at the instant when are charge -Q at point P has velocity v as shown in figure the force on the charge is

Two long parallel straight wires P and Q separated by a distance 5cm in air carry currents of 4A and 2A respectively in same direction. Find the magnitude of the force acting per cm of the wire P and indicate the direction of the force.

A very long straight wire carries a current I. At the instant when a charge +Q at point P has velocity vecv , as shown, the force on the charge is

A very long straight wire carries a current I. At the instant when a charge +Q at point P has velocity vecV , as shown, the force on the charge is