A particle of mass $m$ moves in the $XY$ plane with a velocity ' $v$ ' along the straight line $A B$. If the angular momentum of the particle with respect to origin $O$ is $L _{ A }$ when it is at $A$ and $L_{B}$ when it is at $B$, then
- $L_{A}>L_{B}$
- $L_{A}=L_{B}$
- the relationship between $L _{ A }$ and $L _{ B }$ depends upon the slope of the line $AB$
- $L_{A} < L_{B}$
The Correct Option is B
Solution and Explanation
Top Questions on torque
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Which of the following graph best depicts the variation of the induced emf (E) in the loop as a function of the distance (𝑥) starting from 𝑥 = 0? - The number of turns of the coil of a moving coil galvanometer is increased in order to increase current sensitivity by $50 \%$ The percentage change in voltage sensitivity of the galvanometer will be:
- The torque acting on a magnetic dipole placed in uniform magnetic field is zero, when the angle between the dipole axis and the magnetic field is _____.
- A metre scale is balanced on a knife edge at its centre. When two coins, each of mass 10 g are put one on the top of the other at the 10.0 cm mark the scale is found to be balanced at the 40.0 cm mark. The mass of the metre scale is found to be \(x\times 10^{-2}\) kg. The value of x is _________.
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- Transcription
Concepts Used:
Torque
Torque is a moment of force. Torque is measured as a force that causeque is also defined as the turning effect of force on the axis of rotation. Torque is chs an object to rotate about an axis and is responsible for the angular acceleration. Characterized with “T”.
How is Torque Calculated?
Torque is calculated as the magnitude of the torque vector T for a torque produced by a given force F
T = F. Sin (θ)
Where,
r - length of the moment arm,
θ - the angle between the force vector and the moment arm.
Read More: Torque
Types of Torque
Torque is of two types:
- Static torque
- Dynamic torque