The electric charge in uniform motion produces
An electric field only
A magnetic field only
Both electric and magnetic field
Neither electric nor magnetic field
Why the light particles like pith balls attract towards charged rod ?
What type of charges are obtained on silk cloth and glass rod ?
Why only electron can transfer from one body to another body in frictional electrics ?
How conductors and non-conductors are different ? Why are they not charged by rubbing them with our hands ?
A polythene piece rubbed with wool is found to have a negative charge of $3 \times 10^{-7} \;C$
$(a)$ Estimate the number of electrons transferred (from which to which?)
$(b)$ Is there a transfer of mass from wool to polythene?