Physics

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…

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…

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)…

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…

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.…

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…

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…

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…

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…

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…