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MCQs

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If the medium is changed from air to diamond what would be the effect in potential difference of a capacitor?
NETNUST Entry TestPhysicsElectrostatics
Electrical effects due to friction are studied in
NETNUST Entry TestPhysicsElectrostatics
A proton is moving in the direction of negative x-axis. What will happen to it if potential difference of $\rm{V=-10x+7}$ is applied across the field.
NETNUST Entry TestPhysicsElectrostatics
Value of $\epsilon_{o}$ is
NETNUST Entry TestPhysicsElectrostatics
If a $ \rm{2 \,\mu F}$ capacitor is connected, by closing a switch, to a supply of 100 volts through a $1\times10^{6}$ ohm series resistance. What will be the time constant?
NETNUST Entry TestPhysicsElectrostatics
Capacitors store
NETNUST Entry TestPhysicsElectrostatics
Energy required to charge a capacitor of \rm{5 \,\mu F} by connecting DC source of 20 kV is
NETNUST Entry TestPhysicsElectrostatics
Energy stored in capacitors connected in parallel
NETNUST Entry TestPhysicsElectrostatics
1f voltage of a capacitor is 60 V, then what will be the voltage if diamond is present as dielectric.
NETNUST Entry TestPhysicsElectrostatics
Electric potential is a _________ quantity.
NETNUST Entry TestPhysicsElectrostatics
Unit of capacitance is
NETNUST Entry TestPhysicsElectrostatics
If magnitude of charges is doubled and distance between them is halved, the force between them will become?
NETNUST Entry TestPhysicsElectrostatics
Flux passing through an area does not depend upon
NETNUST Entry TestPhysicsElectrostatics
The unit of the product of RC in the charging of a capacitor is
NETNUST Entry TestPhysicsElectrostatics
If a potential difference of $\rm{V}$ appears on the plates of a capacitor with capacitance $\rm{C}$, then energy stored will be
NETNUST Entry TestPhysicsElectrostatics
If electron is moving along positive x-axis and $\rm{V=5x+3}$ then it
NETNUST Entry TestPhysicsElectrostatics
For a proton moving in the direction of the electric field
NETNUST Entry TestPhysicsElectrostatics
Energy stored in a capacitor is represented by
NETNUST Entry TestPhysicsElectrostatics
Electric intensity between two plates of a capacitor equals
NETNUST Entry TestPhysicsElectrostatics
Product of R and C is
NETNUST Entry TestPhysicsElectrostatics
Two positive charges are separated by 3 m distance. Another positive charge is placed between them. If the charge is moved along y-axis, the system will be in ________ equilibrium
NETNUST Entry TestPhysicsElectrostatics
If the potential difference between the plates of a capacitor with capacitance C is 4V, how much charge will accumulate on each of its plate?
NETNUST Entry TestPhysicsElectrostatics
Two negative charges are present at a distance d. A third positive charge is placed somewhere between these charges. This positive charge will be in _________ equilibrium.
NETNUST Entry TestPhysicsElectrostatics
In $\rm{E = \frac{F}{Q}}$, the charge Is
NETNUST Entry TestPhysicsElectrostatics
If the electric field is $\rm{E = \frac{x}{y}}$ then $\rm{y}$ is?
NETNUST Entry TestPhysicsElectrostatics
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