
shouldnt the answer be 1 ampere? ...

can anyone explain the meaning of multipole...????n is it related to dipole...??? ...

A radar is able to detect the reflected waves from an enemy aeroplane after a time interval of 0.02ms. if v= 3X10^8m/s. d= ...

A boy stands in front of a tall wall and claps. The boy continues to clap every time an echo is heard. Another boy finds that the time taken between the firs and 51st clap is 18s. v=? 330m/s 340 m/s 333m/s none ...

*Image* A trolley is being selfpulled up an incline plane by a man sitting in it. He applies a force of 250 N. If the combined mass of the man and trolley is 100 kg, find the acceleration of the trolley. ...

*Image* ...

*Image* My approach... Initially height is h and let after the temp. is increased to 100°C the height be h'. The buoyant force(U)=h*A*p*g(Initially,and A is the area of cross section of the cylinder) After the temp. increase ...

Draw fbd *Image* ...

*Image* Please post the solution as well... ...

*Image* ...

*Image* it is an infinite grid.. each segmnt of each resitance is R. all are equal squares.. to find resistance between A nd B ...

If tan^2α=1+2tan^2β,prove that cos2β=1+2cos2α ...

In my class X physics book it is written that the expression W=QV "is analogous to the amount of work needed in lifting a weight mg from the earth surface to a vertical height h which is given as W=mg x h = mgh. Obviously on ...

*Image* *Image* Please So the workng ...

*Image* ...

*Image* ...

*Image* ...

*Image* ...

Find equivalent resistance between A & B. *Image* ...

*Image* ...

*Image* ...

*Image* ...

*Image* ...

A disc of mass m ,radius R is shown rolling on horz surface(having sufficient friction). Variation of electric fields with direction exist along its path as shown in figure *Image* 1.Find the velocity after very long time. 2. ...

*Image* ...

*Image* ...

*Image* ...

Please provide solution ...

A small ball is suspended over an infinite horizontal conducting plane by means of an insulating string of stiffness k. As soon as the ball is charged it descends by x and the separation from the plane becomes l. Find the cha ...

In the circuit shown, calculate: a. p.d. between B and D b. current in the galvanometer c. effective resistance across the points A and C *Image* ...