Question Answers

A particle of mass ma and charge q is released from rest in a uniform filed of magnitude E. the uniform field is created between two parallel plates of charge densities +σ and −σ , respectively. The particle accelerates toward the other plate a distance d apart. Determine the speed at which it stirkes the [...]

Consider the situation shown in Fig The horizontal surface below the bigger block is smooth the coefficient of friction between the block is mu find the minimum and the maximum force F that can be applied in order to keep the smaller blocks at rest with respect to the bigger block Two blocks A(mA = [...]

A metal plate M is grounded. A point charge + Q is placed in front of it. Consider two points A and B as shown in fig. At which point (A or B) is the electric field stronger? At which point is the potential higher? The field lines for two point charges shown in fig. [...]

The field lines for two point charges shown in fig. (i) Is the field uniform? (ii) Determine the ratio qA/qB . (iii) What are the sign of qA and qB ? (iv) Apart from infinity, where is the neutral point? (v) If qA and qB are separated by a distance 10(2–√−1) cm, find the position [...]

A block of mass m1 = 20 kg as placed on a wedge of mass m2 = 30 kg rest on a smooth flooras shpwn in Fig (a) . Friction exists between block and wedge. a. Find the acceleration of each block if (i) F = 180 N and (ii) F = 400 N b. [...]

Two blocks A(mA = 5 kg) and B(mB= 15 kg) are placed as shown in Fig A variable force F = 20 starts actsing from time t = 0 on lower bolck B just large anough to Determine the force Two blocks A(mA = 5 kg) and B(mB= 15 kg) are placed as shown in [...]

Charges +q and -2q are fixed at distance d apart as shown in figure. (a) sketch roughly the pattern of electric field lines, showing the position of neutral point. (b) where should a charge particle q be placed so that it experience no force? Charges +q and -2q are fixed at distance d apart as [...]

A track consists of two circular pars ABC and CDE of equal rdius 100 m and joined smoothly as shown in figure.Each part sutends a right ngle at its centre. A cycle weighing 100 kg together with rider travels at a constant speed of 18 km/h on the track. 100 N and 15 N Take [...]

Consider three blocks placed one over the other as shown in Fig. Let as now pull the blocks with the force of magnitudes 18 N, 100 N and 15 N Take m1 = m2 = m3 = 10 kg If the coefficient of static and kinetic friction between all contacting surface are mu s = [...]

Two mutually perpendicular long straight conductors carrying uniformly distributed charges of linear charges densities λ1 and λ2 are positon at a distance a from each other. How does the interaction between the rods depends on a ? A system consits fo a thin charged wire ring of radius R and a very long uniformly charged [...]