In the regular hexagon shown in Fig. 3.51, `vecAB + vecBC + vecCD+ vecDE + vecEF+ vecAF` can be expressed as :

In the regular hexagon shown in figure vec(AB)+vec(BC)+vec(CD)+vec(DE)+vec(EF)+vec(AF) can be expressed as :

A 100 g block is connected to a horizontal massless spring of force constant 25.6(N)/(m) As shown in Fig. the block is free to oscillate on a horizontal frictionless surface. The block is displaced 3 cm from the equilibrium position and , at t=0 , it is released from rest at x=0 It executes simple harmonic motion with the postive x-direction indecated in Fig. The position time (x-t) graph of motion of the block is as shown in Fig. Velocity of the block as a function of time can be expressed as

A 100 g block is connected to a horizontal massless spring of force constant 25.6(N)/(m) As shown in Fig. the block is free to oscillate on a horizontal frictionless surface. The block is displaced 3 cm from the equilibrium position and , at t=0 , it is released from rest at x=0 It executes simple harmonic motion with the postive x-direction indecated in Fig. The position time (x-t) graph of motion of the block is as shown in Fig. Velocity of the block as a function of time can be expressed as

In the circuit shown in (fig. 3.51), find the current recorded by ammeter (A). .

A 100 g block is connected to a horizontal massless spring of force constant 25.6(N)/(m) As shown in Fig. the block is free to oscillate on a horizontal frictionless surface. The block is displaced 3 cm from the equilibrium position and , at t=0 , it is released from rest at x=0 It executes simple harmonic motion with the postive x-direction indecated in Fig. The position time (x-t) graph of motion of the block is as shown in Fig. Position of the block as a function of time can now be expressed as

Two infinitely long straight parallel wire are 5 m apart, perpendicular to the plane of paper. One of the wires, as it passes perpendicular to the plane of paper, intersects it at A and carries current I in the downward direction. The other wire intersects the plane of paper at point B and carries current k int the outward direction O in the plane of paper as shown in Fig. With x and y axis shown, magnetic induction at O in the component form can be expressed as