Home
Class 12
PHYSICS
Electric circuit is composed of three co...

Electric circuit is composed of three conducting rods MO, ON and PQ as shown in the figure. The resistance of the rods per unit length is known to be 1. The rod PQ slides as shown in the figure. At t=0, rod PQ is at O. The whole system is embledded ina uniform magnetic field B, which is directed perpendicularly into page. The induced electric current is:

A

Proportional to time t

B

Inversibly proportional to time t

C

Proportional to square at time t

D

Independent of time t

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

an electric circuit is component of the three conducting rods MO , ON and PQ , as shown in the figure. The resistence of the rods per unit length is lambda . The rod PQ slide, as shown in the figure, at a constant velocity v , keeping its tilt angle relative to ON and MO fixed at 45^(@) . At each instance the circuit is closed. The whole system is embedded in a uniform magnetic field B , which is directe dperpendicularly into th epage. Compute the time-dependent induced electric current

The y co - ordinate of the centre of mass of the system of three rods of length 2a and two rods of length a as shown in the figure is (Assume all rods to be of uniform density)

A conductor PQ , with PQ=r , moves with a velocity v in a uniform magnetic field of induced B . The emf induced in the rod is

A conducting wheel in which there are four rods of length 25 cm as shown in the figure is rotating with constant velocity 20 rad/s in a uniform magnetic field 8 T . The induced potential difference between its centre and rim will be

A conducting wheel in which there are four rods of lengthe l as shown in figure is rotating with angular velocity omega in a uniform magnetic field B. The induced potential difference between its centre and rim will be

A small conducting rod of length l, moves with a uniform velocity v in a uniform magnetic field B as shown in fig __

A conducting rod PQ of length 5 m oriented as shown in figure is moving with velocity (2 m//s)hat(i) without any rotation in a uniform magnetic field (3hat(j)+4hat(k)) Tesla. Emf induced in the rod is

A metal rod of length l cuts across a uniform magnetic field B with a velocity v. If the resistance of the circuit of which the rod forms a part is r, then the force required to move the rod is

An iron rod of mass 50 g and length 50 cm is suspended by master wires as shown in the figure. Calculate the magnitude and direction of magnetic field to be set in the region such that the tension is the wires is zero. The current in the rod is 4 A.