If a current of 3.0 amperes flowing in the primary coil is reduced to zero in 0.001 second, then the induced e.m.f. in the secondary coil is 15000 "volts" . The mutual inductance between the two coils is
If the current in the primary coil is reduced from 3.0 ampere to zero in 0.001 second, the induced e.m.f in the secondary coil is 1500 volt. The mutual inductance of the two coils will be-
The terminal potential difference of a cell when short-circuited is (E = E.M.F. of the cell)
If E and F are two events associated with a random experiment for which P(E)=0.6, P(E uu F)=0.85 and P(E nn F) =0.42 , then P(F) is
Let F(x)=[cos x-sin x0sin x cos x0001] Show that F(x)F(y)=F(x+y)
A short linear object of length b lies on the axis of a concave mirror of focal length F at a distance u from the pole. The length of the image will be
