Home
Class 12
PHYSICS
A conducting rod AB of length l is proje...

A conducting rod AB of length l is projected on a frictionless frame PSRQ with velocity `v_(0)` at any instant. The velocity of the rod after time t is

A

`v=v_(0)`

B

`v gt v_(0)`

C

`v lt v_(0)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -C) Previous Years Questions|34 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION -D) Assertion-Reason type Question)|15 Videos

  • ELECTROMAGNETIC INDUCTION

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT(SECTION - A) (OBJECTIVE TYPE QUESTIONS)|35 Videos

  • ELECTRIC CHARGES AND FIELDS

    AAKASH INSTITUTE ENGLISH|Exercise comprehension|3 Videos

  • ELECTROMAGNETIC WAVES

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D Assertion-Reason Type Questions|25 Videos

Similar Questions

Explore conceptually related problems

A conducting rod of length l is moving in a transverse magnetic field of strength B with veocity v. The resistance of the rod is R. The current in the rod is

A conducting circular loop of radius a and resistance per unit length R is moving with a constant velocity v_0 , parallel to an infinite conducting wire carrying current i_0 . A conducting rod of length 2a is approaching the centre of the loop with a constant velocity v_0/2 along the direction 2 of the current. At the instant t = 0 , the rod comes in contact with the loop at A and starts sliding on the loop with the constant velocity. Neglecting the resistance of the rod and the self-inductance of the circuit, find the following when the rod slides on the loop. (a) The current through the rod when it is at a distance of (a/2) from the point A of the loop. (b) Force required to maintain the velocity of the rod at that instant.

A rod AB is shown in figure. End A of the rod is fixed on the ground. Block is moving with velocity 2 ms^-1 towards right. The velocity of end B of rod at the instant shown in figure is

A conducting rod OA of length l is rotated about its end O with an angular velocity omega in a uniform magnetic field directed perpendicualr to the rotation. Find the emf induced in the rod, between it's ends.

In the figure shown a conducting rod of length l , resistnace R and mass m is moved with a constant velocity v .The magnetic field B varies with time t as B=5 t , where t is time in second.At t=0 the area of the loop containing capacitor and the rod is zero and the capacitor is uncharged.The rod started moving at t=0 on the fixed smooth conducting rails which have negligible resistance.Find (i)The current in the circuit as a function of time t . (ii)If the above system is kept in vertical plane such that the rod can move vertically downward due of gravity and other parts are kept fixed and B =constant = B_(0) .then find the maximum current in the circuit.

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

A conducting rod AB of length l is rotated about point O with an angular velocity velocity omega in a uniform magnetic field (B_0) directed perpendicular into the plane of rotation as shown in the figure. The value of V_B - V_A is

A uniform rod of length l is spinning with an angular velocity omega=2v/l while its centre of mass moves with a velocity v . Find the velocity of the end of the rod.

A uniform rod AB of length l and mass m hangs from point A in a car moving with velocity v_(0) on an inclined plane as shown in Fig. The rod can rotate in vertical plane about the axis at point A . if the car suddenly stops, the angular speed with which the rod starts rotating is

A rod AB of length L and mass M is free to move on a frictionless horizontal surface. It is moving with a velocity v, as shown in figure. End B of rod AB strikes the end of the wall. Assuming elastic impact, the angular velocity of the rod AB, just after impact, is

Home
Profile