How have you guys done?!!

The second one is like this :

The centripetal force created due to the circular path of the charge has to be equal to the magnetic force.

Equating the two;

mv*2/r=Bqvsin30

hence;

r=mv/2Bq

Yeah the second one is mv/2bq,sorry I made a mistake :|

But i'm not too sure about the first one either :(

i'm not too sure but I think the first one is something like this :

1)Current=nxq/T

T =2TTm/Bq

Just substitute and that gives the current.

T-Tme period,n-no. o electrons,q-charge

2)mv*2/r=Bqvsin30

mv*2/r=Bqv/2

2mv/Bq=r

Hey,this questions been bugging me,if you know how to do it please help me!><

An acid base indicator has Ka=3x10-5(to the power -5)The acid form is red and basic form is blue.The change in [H+] required to change the indicator from 75% acidic to 25% basic is?

a)8x10-5

b)9x10-5

c)1x10-5

d)3x10-4

Thank you ! :)

What were the cut-offs for Bangalore Medical College through K-CET? 

My AIPMT application form hasn't been received by the board.So it says I must get in contact with the board authorities with some documents.I live in Bangalore,and I don't think there is a CBSE office here as Bangalore comes under the Tamil Nadu CBSE Office.Can anyone tell me what the exact procedure is?

A bus is moving at a velocity 10 m/s on a straight road.A scooterist wishes to overtake the bus in 100 seconds.If the bus is at a distance of 1 km from the scooterist,with what velocity should the scooterist chase the bus?

Options:

a)20 m/s b)40 m/s c)30 m/s d)50 m/s

Anyone help me out!

Are they going to implement the Common medical entrance from this academic year?That is for the currently studying in 12th students?