The voltage of clouds is 4×10⁶ volt with respect to ground. In a lightening
The voltage of clouds is 4x10⁶ volt with respect to ground. In a lightening strike lasting 100 m sec, a…
8 years ago
Questions
The order of the electric field near the earth’s surface is
The order of the electric field near the earth's surface is Options (a) 100 v/m (b) 500 v/m (c) 200…
8 years ago
Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N.
Two point charges +2 coulomb and +10 coulomb repel each other with a force of 12 N. Charges of -2…
8 years ago
A parallel plate capacitor of a capacitance 1 pF has seperation between the plates
A parallel plate capacitor of a capacitance 1 pF has seperation between the plates is d. When the distance of…
8 years ago
The specific charge of a proton is 9.6×10⁷ C/kg. The specific charge of an alpha particle
The specific charge of a proton is 9.6x10⁷ C/kg. The specific charge of an alpha particle will be Options (a)…
8 years ago
The unit of permitivity of free space, ε₀ is
The unit of permitivity of free space, ε₀ is Options (a) coulomb/newton-metre (b) Newton x metre²/coulomb² (c) coulomb²/newton-metre² (d) coulomb²/(newton…
8 years ago
A spherical drop of mercury having a potential of 2.5 v is obtained as a result
A spherical drop of mercury having a potential of 2.5 v is obtained as a result of merging 125 droplets.…
8 years ago
Two capacitors of capacitances 2 μF and 3 μF are joined in series.
Two capacitors of capacitances 2 μF and 3 μF are joined in series. Outer plate of first capacitor is at…
8 years ago
The unit of electric permittivity is
The unit of electric permittivity is Options (a) volt/m² (b) joule/coulomb (c) farad/m (d) henry/m Correct Answer: farad/m Explanation: Electric…
8 years ago
The electric potential at the surface of an atomic nucleus (z=50) of radius
The electric potential at the surface of an atomic nucleus (z=50) of radius 9.0x10⁻¹³ cm is Options (a) 80 volt…
8 years ago