Все публикации

0:03:14

A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific

0:01:56

If flow of 10 to the power 7 electrons per second in a conducting wire constitutes a current of

0:03:01

The resistance if a wire is 'R' ohm. If it is melted and stretched to 'n' times its original length

0:02:10

A wire of resistance 4 ohm is stretched to twice its original length. The resistance of stretched

0:07:21

Two particles undergo SHM along parallel lines with the same time period (T) and equal amplitudes.

0:01:50

The acceleration displacement graph of a particle executing simple harmonic motion is shown in

0:04:12

The spring block system as shown in figure is in equilibrium. The string connecting blocks A and B

0:04:45

A horizontal spring-block system of mass 2 kg executes S.H.M. When the block is passing through

0:06:47

A solid sphere of mass M and radius r slips on a rough horizontal plane. At some instant it

0:05:06

A car moves with speed v on a horizontal circular track of radius R. A head-on view of the car

0:03:41

Two identical discs of mass m and radius r are arranged as shown in the figure.

0:04:07

A uniform pole of length L and mass M is pivoted on the ground with a frictionless hinge O.

0:02:26

A cylinder is rolling without sliding over two horizontal planks (surface) 1 and 2.If the velocities

0:04:59

Differential Equations

0:02:26

The mean age of 25 teachers in a school is 40 years. A teacher retires at the age of 60 years

0:01:45

The missing value in the following figure is ----------.

0:04:29

Let the plane ax + by + cz + d = 0 bisect the line joining the points (4, -3, 1) and (2, 3, -5) at

0:03:30

Let z1 , z2 be the roots of the equation z2 + az + 12 = 0 and z1 , z2 form an equilateral triangle

0:03:01

The real function f(x) = (〖𝒄𝒐𝒔𝒆𝒄〗^(−𝟏) 𝒙)/√(𝒙−[𝒙] ) where [x] denotes the greatest integer

0:03:49

A vector 𝒂 ⃗ has components 3p and 1 with respect to a rectangular Cartesian system. This system

0:02:25

If the equation a|z|2 + ¯(¯𝜶 𝒛+𝜶¯𝒛)+𝒅=𝟎 represents a circle where a, d are real constants, then

0:04:45

Matrices

0:02:52

For the four circles M,N, O and P, following four equations are given

0:03:36

An infinitely long straight conductor is bent into the shape as shown in the figure. It carries a