Recent content by Abhilash H N

The current always flows from +ve terminal to -ve. The negetive sign just indicates that current is positive in the reverse direction (in other words it is flowing in the reverse direction). Since ib is given as -2A it is saying that the current is 2A in the reverse direction (which is indicated...

The conversion is done right, And it was necessary to do that. It doesn't matter if the answer comes out in years or seconds, it would be the same. But since the textbook has the answer in terms of seconds it is better to do it that way. Now given that human kind consumes 5×1014MJ per...

The given equation won't help... As one can see it is related to internal energy change at constant volume... The equation for enthalpy change in terms of internal energy change and work done might help. i.e. ΔH=ΔU+PΔV where P - the value of constant pressure applied ΔV - change in...

Equating the kinetic energies was a right choice... But the simplification was a bit confusing... This is where it went wrong. It has to be √2vheavier=vlighter... Other than that everything is fine, check your calculations and you will be on your way... Regards

There are lone pairs, right on top of oxygen molecule. The molecule is tetrahedral. But the presence of lone pair of electrons does not have any effect on the polarity of oxygen. However they play a role in co-ordination chemistry. See the attachment... Regards.

Everything is fine, nothing to worry... Regards

Try going like this... There are two possibilities: 1.There are infinitely many natural numbers n where the square root of n is rational. 2.There are finite natural number whose roots are rational. If things were go as 1. then the proof is complete. If things were to go as 2. then we have to...

This is wrong, going by the rule we get m[(r.r)ω-(r.ω)r] On simplification we'll get the answer... Regards

Well to get a laser beam you have to supply energy right? If laser is used as an energy source you are getting nothing but the same energy you had supplied, practically lesser perhaps...

The general electronic configuration of 3d elements is 3d1-104s1-2. As one moves gradually along the group the electrons get filled to the 3d orbitals. So by that condition copper should have the electronic configuration as 3d94s2. But since completely filled orbitals are more stable an electron...

(ωt+∅) becomes zero not 25.82 ... But you have taken (ωt+∅)=25.82t=0 in the coming equation, I think you substituted t=0 later, that's OK... And the answer comes out to be right.. Just don't confuse with the equations, first retrieve all data and then substitute that's all... :smile: Regards

When one tries to find the direction of induced current, the poles of the magnets also count. In the question the south pole goes first, and its description is given under the sub-heading 'Reverse pole' in web link you gave... And yes, there is a law for this one and it is called the 'Lenz`s...

Amplitude is nothing but the maximum displacement of the particle. Since the mass is pulled up to 10 mm from the actual or mean position it will be the amplitude (well, while in motion the mass cannot go any further right?). And t is not the displacement its the time. If you might recall the...

So I believe we have to add 9 times the solvent, sorry for that mistake...

Now you have a solution right? To dilute the solution 10 times, add 10 times the solvent to it...