MCQ
One metallic sphere A is given positive charge whereas another identical metallic sphere B of exactly same mass as of A is given equal amount of negative charge. Then
  • A
    Mass of A and mass of B still remain equal
  • B
     Mass of A increases
  • C
    Mass of B decreases
  • Mass of B increases

Answer

Correct option: D.
Mass of B increases
Mass of B increases

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The collector current in a common base amplifier using $n-p-n$ transistor is $24\; mA$. If $80 \%$ of the electrons released by the emitter is accepted by the collector, then the base current is numerically
A neutron strikes a ${ }_{92} U ^{235}$ nucleus and as a result ${ }_{38} Kr ^{93}$ and ${ }_{56} Ba ^{140}$ are produced with
Half angular width of the central maxima in the fraunhaufer diffraction due to slit width $\frac{{1200}}{{\sqrt 2 }}\ \mu m $ is $45^o$. Then wavelength of the light is......$\mu m $
A circular disc of which $2/3$ part is coated with yellow and $1/3$ part is with blue. It is rotated about its central axis with high velocity, then it will be seen as
When a point source of light is at a distance of one metre from a photo cell, the cut off voltage is found to be V. If the same source is placed at 2 m distance from photo cell, the cut off voltage will be
Two parallel plate capacitors $C_1$ and $C_2$ each having capacitance of $10 \mu F$ are individually charged by a $100\,V$ $D.C.$ source. Capacitor $C _1$ is kept connected to the source and a dielectric slab is inserted between it plates. Capacitor $C _2$ is disconnected from the source and then a dielectric slab is inserted in it. Afterwards the capacitor $C_1$ is also disconnected from the source and the two capacitors are finally connected in parallel combination. The common potential of the combination will be $.........V.$ (Assuming Dielectric constant $=10$ )
In a co-axial straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero.
Which of the following logic gate is an universal gate
In the circuit shown in figure, four capacitors are connected to a battery. The potential difference across the $6$ $\mu F$ capacitor is......$V$
Two nearby objects are just resolved, if the principle maximum in the diffraction pattern of one coincides with: