Two parallel rails with negligible resistance are `10.0 cm` apart. The are connected by a `5.0Omega` resistor. The circuit also contains two metal rods having resistances of `10.0Omega` and `15.0Omega` along the rails. The rods are pulled away from the resistor at constant speeds `4.00 m/\s` and `2.00 m//s` respectively. A uniform magnetic field of magnitude `0.01 T` is applied perpendicular to the, plane of the rails. Determine the current in the `5.0Omega` resistor.

Resistors having resistances of 15 Omega , 20 Omega and 10 Omega are connected in parallel. What is the effective resistance in the circuit?

In a circuit, two resistors of resistances 5 Omega and 10 Omega are connected in series. Compare the current passing through the two resistors.

Find the effective resistance of the combination of two resistors of resistances 10 Omega and 15 Omega connected in series (ii) parallel.

A rod of mass 0.720 kg and radius 6 cm rests on two parallel rails that are d=12 cm apart and length of rails is L=49 cm. The rod carried a current of I=48 A Fig. and rolls along the rails without slipping. A uniform magnetic field of magnetude 0.240 T is directed perpendicular to the rod and the rails. If it starts from rest, what is the speed of the rod as it leaves the rails?

A rod of mass 0.720 kg and radius 6 cm rests on two parallel rails that are d=12 cm apart and length of rails is L=49 cm. The rod carried a current of I=48 A Fig. and rolls along the rails without slipping. A uniform magnetic field of magnetude 0.240 T is directed perpendicular to the rod and the rails. If it starts from rest, what is the speed of the rod as it leaves the rails?

A copper rod of mass m slides under gravity on two smooth parallel rails l distance apart set at an angle theta to the horizontal. At the bottom, the rails are joined by a resistance R . There is a uniform magnetic field perpendicular to the plane of the rails. the terminal valocity of the rod is

A copper rod of mass m slides under gravity on two smooth parallel rails l distance apart set at an angle theta to the horizontal. At the bottom, the rails are joined by a resistance R . There is a uniform magnetic field perpendicular to the plane of the rails. the terminal valocity of the rod is

There is a pair of fixed, parallel rails of negligible resistance in a horizontal plane, at a distance of L = 10 cm. The rails are connected, at one of their ends to an ideal battery of EMF 0.5 V, as shown in the figure. The system is placed in a vertically downward and perpendicular magnetic field of magnetic induction B = 1T. A metal rod of resistance R=10Omega is placed perpendicularly on the rails. The rod placed perpendicularly on the rails. The rod and rails are frictionless. The magnitude of force, which is to be exerted on the rod in order to move it with a constant speed of order to move it with a constant speed of 1ms^(-1) in the direction shown, is