5 Powerful Brain Games | U0001f9e0 Improve Your Focus & Increase The Speed of Your Studies | U0001f9e0 #shorts

A coil of L=5xx10^(-3) H and R=18 Omega is abruptly supplied a potential of 5 volts . What will be the rate of change of current in 0.001 second? (e^(-3 .6)=0.0273)

The potential energy of a particle of mass m is given by U=(1)/(2)kx^(2) for x lt 0 and U = 0 for x ge 0 . If total mechanical energy of the particle is E. Then its speed at x = sqrt((2E)/(k)) is

A speaker emits a sound wave of frequency f_(0) . When it moves towards a stationary observer with speed u, the observer measures a frequency f_(1) . If the speaker is stationary, and the observer moves towards it with speed u, the measured frequency is f_(2) . Then -

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-

Directions: Study the following information carefully and answer the questions given below. M4, L6, U4 is written as “tell your name” E8, K8, R2 is written as “marks are obtained” U4, E8, V4 is written as “give your number” H4. E8, S10 is written as “she seemed highest”. “Tell your number” is coded as

In case of a concave mirror, when we move the object from infinity to focus of the mirror (i.e., u decreases from oo to f), the image moves from focus to oo . So, the correct graph is shown by

The potential energy of a particle of mass m is given by U = (1)/(2) kx^(2) for x lt 0 and U=0 for x ge 0 . If total mechanical energy of the particle is E . Then its speed at x = sqrt((2E)/(k)) is

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