A rectangular loop of sides 10 cm and 5 cm carrying a current 1 of 12 A is placed in different orientations as shown in the figures below :
ltBrgt If there is a uniform magnetic field of 0.3 T in the positive z direction, in which orientations the loop would be in (i) stable equilibrium ?
A diode detector is used to detect an amplitude modulated wave of 60% modulation by using a condenser of capacity 250 pico farad in parallel with a load resistance 100 kilo ohm. Find the maximum modulated frequency which could be detected by it.
Let a and b be the roots of equation px2+qx+r=0,p=0.. If p, q, r are in A.P. and α1+β1=4, then the value of ∣α−β∣ is
Let Tnbe the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If Tn+1−Tn=10, then the value of n is