The number of electrons to be put on a spherical conductor of radius $0.1\,m$ to produce an electric field of $0.036\, N/C$ just above its surface is
The number of electrons to be put on a spherical conductor of radius $0.1\,m$ to produce an electric field of $0.036\, N/C$ just above its surface is
- A
$2.7 \times {10^5}$
- B
$2.6 \times {10^5}$
- C
$2.5 \times {10^5}$
- D
$2.4 \times {10^5}$
Similar Questions
An electron experiences a force equal to its weight when placed in an electric field. The intensity of the field will be
An electron experiences a force equal to its weight when placed in an electric field. The intensity of the field will be
The maximum value of electric field on the axis of a charged ring having charge $Q$ and radius $R$ is
The maximum value of electric field on the axis of a charged ring having charge $Q$ and radius $R$ is
The magnitude of electric field intensity $E$ is such that, an electron placed in it would experience an electrical force equal to its weight is given by
The magnitude of electric field intensity $E$ is such that, an electron placed in it would experience an electrical force equal to its weight is given by
For given arrangement, where four charge fixed at ends of as quare as given, find value of additional charge $Q$ to be put on one of the vertices so that component of net electric field along the vertical symmetric axis is zero at every point on the vertical
For given arrangement, where four charge fixed at ends of as quare as given, find value of additional charge $Q$ to be put on one of the vertices so that component of net electric field along the vertical symmetric axis is zero at every point on the vertical
Charge $q$ is uniformly distributed over a thin half ring of radius $R$. The electric field at the centre of the ring is
Charge $q$ is uniformly distributed over a thin half ring of radius $R$. The electric field at the centre of the ring is
- [AIIMS 2008]