consider two metallic spheres carrying charges Q1and Q2 and having capacitances C1and C2 . They are of unequal size . They are now allowed to collide inelastically in mid air and after the collision they move as a single body through a distance 'd'. Now they are held very close to each other . The ratio of their capacitances now becomes
during collision of a free electron with with a lattice , the electron generally does not get attatched to the lattice although they carry opposite charges . Why?
the cause of displaying drift speed by electrons is
consider a motion of charged particles . During this motion
emf is defined as work done / charge. Non existence of emf implies that when the battery is connected externally
consider a capacitor with two plates arranged parallel to each other placed in a dielectric medium of dielectric constant =k. One plate has a positive charge +q and the other a negative charge -q. Now by some arrangement the positive plate and the negative plate are firmly held wide apart and positive charge is continuously added to the positive plate and negative charge is continuously added to the negative plate . As time passes it will be observed that
consider a current 'i' flowing through an uniform metallic wire. Now a proton and an electron are taken and kept close to the current carrying conductor . There is some gap between the proton and the electron . Under the influence of this system the paths followed by the proton and the electron will be