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…
7 years ago
Electrostatics
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…
7 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…
7 years ago
Two capacitors 3μF and 4μF, are individually charged across a 6 V battery.
Two capacitors 3μF and 4μF, are individually charged across a 6 V battery. After being disconnected from the battery, they…
7 years ago
In a parallel plate capacitor with plate area A and charge Q, the force on one plate
In a parallel plate capacitor with plate area A and charge Q, the force on one plate because of the…
7 years ago
The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential
The electric field in a certain region is given by E=5i ̂-3ĵ kV/m. The potential difference Vв-Vᴀ between points A…
7 years ago
A point charge is kept at the centre of a metallic insulated spherical shell. Then
A point charge is kept at the centre of a metallic insulated spherical shell. Then Options (a) Electric field outside…
7 years ago
A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
A spherical drop of capacitance 1μF is broken into eight drops of equal radius. Then, the capacitance of each small…
7 years ago
Work done by an external agent in separating the parallel plate capacitor is
Work done by an external agent in separating the parallel plate capacitor is Options (a) CV (b) 1/2 C²V (c)…
7 years ago
When two identical capacitors are in series, they have 3 μF capacitance
When two identical capacitors are in series, they have 3 μF capacitance and when in parallel 12 μF. What is…
7 years ago