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Non Contact Force

Definition Non contact force is a force which acts on an object without coming physically into contact with it. What […]

Electromotive Force

electromotive force of a galvanic cell The electromotive force of a galvanic cell is the potential difference (voltage) between the […]

Universal Forces

universal forces The forces that are always present and that act on objects. The four fundamental forces are gravity, electromagnetism, […]

The magnetic force acting on a charged particle of charge −2 μC in a magnetic field of 2 T acting in y direction, when the particle velocity is 2i^ + 3j^ × 106 ms−1, is

A particle moves with a velocity v→=(5i^−3j^+6k^) ms−1 under the influence of a constant force F→=(10i^+10j^+20k^)N. The instantaneous power applied to the particle is

A force vector applied on a mass is represented as F→=6i^−8j^+10k^ and accelerates with 1m/s2.What will be the mass of the body

A body of mass 0.01 kg executes simple harmonic motion (S.H.M.) about x=0 under the influence of a force shown below : The period of the S.H.M. is

Consider a simple pendulum having a bob attached to a string, that oscillates under the action of the force of gravity. Suppose that the period of oscillations of the simple pendulum depends on its length (l ), mass of the bob (m) and acceleration due to gravity (g). Using the method of dimensions, expression for its time period is

Two charges each equal to 2 μC are 0.5 m apart. If both of them exist inside vacuum, then the force between them is

Two charges placed in air repel each other by a force of 10−4 N. When oil is introduced between the charges, the force becomes 2.5×10−5 N. The dielectric constant of oil is

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