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0:00:57

The rotational Kinetic energy of two bodies of moment of inertia 9kgm^2 and 1kgm^2

0:02:54

A solid sphere of mass 500g and radius 5cm is rotated about one of its diameter with angular speed

0:01:32

An electric motor exerts a constant torque 5N on a fly wheel by which it is rotated at the rate of

0:02:21

An automobile engine develops 100KW when rotating at a speed of 1800rev/min.The torque it

0:03:07

The position vector of 1kg object is r=(3i-j)m and its velocity v=(3j+k)m/s.The magnitude of its

0:03:16

The moment of the force F=4i+5j-6k at (2,0,-3) about the point (2,-2,-2) is given by

0:01:00

The ratio of the radii of gyration of a circular disc to that of a circular rin each of same mass

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what is the value of linear velocity,if r=3i-4j+k and w=5i-6j+6k?

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Find the torque about origin when a force of 3jN acts on a particle whose position vector is 2k

0:03:29

A string is wrapped around the rim of a wheel of moment of inertia 0.40kgm^2 and radius 10cm.The

0:03:51

compare the power used in the 2ohm resistor in each of the following circuits 1)a 6v battery in

0:03:04

A light rope is wound around a hollow cylinder of mass 5kg and radius 70cm.The rope is pulled with a

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how can three resistors of resistances 2ohm,3ohm and 6ohm be connected to give a total resistance

0:02:01

what is a)the highest b)the lowest total resistance that can be secured by combinations of four coil

0:03:17

Find the acceleration of centre of mass of blocks of masses m1 and m2 [M1 greater than M2] in At

0:05:22

A copper wire has diameter 0.5mm and resistivity of 1.6×10^-8 ohm metre.What will be the length of

0:03:19

Two conducting wires of the same material and of equal lengths and equal diameters are first connect

0:02:45

Resistance of a metal wire of length 1m is 26 ohm at 20°c.If the diameter of the wire is 0.3mm,

0:01:50

A battery of 9v is connected in series with resistors of 0.2ohm,0.3ohm,0.4ohm,0.5ohm and 12 ohm

0:01:39

Compute the heat generated while transferring 96000 coulomb of charge in one hour through a potent

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An electric iron of resistance 20 ohm takes a current of 5A. Calculate the heat developed in 30s

0:01:41

An electric motor takes 5A from a 220v line. Determine the power of the motor and the energy consume

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Show how you would connect three resistors,each of resistance 6ohm,so that the combination has a

0:02:23

Several electric bulbs designed to be used on a 220v electric supply line,are rated 10 W.How many