If S is stress, Y is Youngs modulus of material of a wire, the energy stored in the wire per unit volume is
If speed of rotation of the earth increases, weight of the body
If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is _
If the current in the toroidal solenoid increases uniformly from zero to 6.0A in 3.0μs. Self inductance of the toroidal solenoid is 40μH. The magnitude of self induced emf is
If the diameter of a conductor is double, then its resistance will be reduced to
If the distance between two charges is halved, then the force between them becomes
If the excitation to the field of the D.C motor is constant, then the torque developed in the motor is proportional to
If the frequency of a sound wave is reduced to half of its original value, then the speed of sound wave will:
If the image formed in the mirror is always erect, equal in size to the object, then the mirror is
If the phase difference between two points is 120° for a wave with velocity of 360 m/ & frequency 500 Hz, then path difference between the two points is
