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General
Easy
Question
A uniform rod having length L, is made of material having density r and young's modulus Y. It is placed . What minimum thermal 
between two vertical walls having separation L and coefficient of friction strain should be generated in the rod by heating it so that it does not falls down on releasing.
- None
The correct answer is:
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The conducting connector ab mass m and length L can freely slide on a horizontal long conducting parallel rails connected by capacitor C at one ends (as shown in figure). A non conducting light spring (spring const. K) connected to the connector ab and it is in a relaxed state. The whole system is placed in uniform magnetic field of strength B directed into the plane of rails (as shown in figure) Now at time t = 0, connector is suddenly given a velocity V0 in rightward direction. If resistance and self inductance of circuit is negligible then
The rod will execute (after projecting it at t = 0)
The conducting connector ab mass m and length L can freely slide on a horizontal long conducting parallel rails connected by capacitor C at one ends (as shown in figure). A non conducting light spring (spring const. K) connected to the connector ab and it is in a relaxed state. The whole system is placed in uniform magnetic field of strength B directed into the plane of rails (as shown in figure) Now at time t = 0, connector is suddenly given a velocity V0 in rightward direction. If resistance and self inductance of circuit is negligible then
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The conducting connector ab mass m and length L can freely slide on a horizontal long conducting parallel rails connected by capacitor C at one ends (as shown in figure). A non conducting light spring (spring const. K) connected to the connector ab and it is in a relaxed state. The whole system is placed in uniform magnetic field of strength B directed into the plane of rails (as shown in figure) Now at time t = 0, connector is suddenly given a velocity V0 in rightward direction. If resistance and self inductance of circuit is negligible then
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The conducting connector ab mass m and length L can freely slide on a horizontal long conducting parallel rails connected by capacitor C at one ends (as shown in figure). A non conducting light spring (spring const. K) connected to the connector ab and it is in a relaxed state. The whole system is placed in uniform magnetic field of strength B directed into the plane of rails (as shown in figure) Now at time t = 0, connector is suddenly given a velocity V0 in rightward direction. If resistance and self inductance of circuit is negligible then
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The conducting connector ab mass m and length L can freely slide on a horizontal long conducting parallel rails connected by capacitor C at one ends (as shown in figure). A non conducting light spring (spring const. K) connected to the connector ab and it is in a relaxed state. The whole system is placed in uniform magnetic field of strength B directed into the plane of rails (as shown in figure) Now at time t = 0, connector is suddenly given a velocity V0 in rightward direction. If resistance and self inductance of circuit is negligible then
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