Recent content by jyothsna pb

what if we get an initial error invalid drive or directory while opening a saved c++ program?

thanx 4 all the replies i did open the file we just started with file operations in our school so the doubts may sound a lil silly :P

how to see the output of a file operation? eg void main() { int a; cin>>a; ofstream o("a.txt"); o<<a; o.close(); } does the text file "a" come into existence? can we open it?

i^ , j^ n k^ are perpendicular vectors so as per the formula i gave their dot product ( whatever b the product) will b 0. that is i.j , i.k , j.k are all 0 now try doing remember its scalar product so it does not have production

dot product= ABcos(theeta) cos0=1 cos90=0 now try doing

the formula for electrostatic force is k*q1*q2/r^2 be careful about the units

these forces act at 90 degree to each other take the vector product n u'll get total force

How to find i1 and i2?

hey can someone please help me with the other question too?

thanku so much

what is the terminal pd across the cell in that case?

thanku so much y is d spark produced?

is the current through this loop I=(E1+E2)/(r1+r2) n terminal p.d across cell 1 &2 E1-Ir1 & E2-Ir2 respectively

u mean to say if we keep such a system undisturbed 4 a long time the battery will get exhasted soon?

when the terminals of a single cell are connected by means of a conducting wire with no resistor component is there a current flow through the wire ? jus started with current electricity have a lot of doubts thanks for any help