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Three times decrease in the distance between the plates of a parallel plate capacitor will _______.
NTS 2019
Physics
Electrostatics
Elimination Tool:
The values of electric intensity will ____ due to the presence of dielectric medium:
PMC 2020
Physics
Electrostatics
Elimination Tool:
If a 2 µF capacitor is connected, by closing a switch, to a supply of 100 volts through 1M ohm series resistance. What will be the time constant?
Two equal, opposite charges are fixed at a distance d. Positive charge is at the right and negative at the left position. As shown below:
X – Y + Z
At which position, the net electric field is directed to the left?
PMC Sample 2
Physics
Electrostatics
Elimination Tool:
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?
Which statement describes the electric potential difference between two points in the electric field of charge Q?
NTS 2019
Physics
Electrostatics
Elimination Tool:
Which one is the correct statement about selenium?
PMC Sample 2
Physics
Electrostatics
Elimination Tool:
If two point charges of charge q1 and q2 are placed at distance d, then the force between them is proportional to:
PMC Sample 1
Physics
Electrostatics
Elimination Tool:
By increasing the area of the plates and decreasing the distance between them, the capacitance of a capacitor:
NUMS 2020
Physics
Electrostatics
Elimination Tool:
Two capacitors C1 = 3 uF and C2 = 6 uF are in series across a 90 volts D.C. supply. The total capacitance is given by:
NTS 2012
Physics
Electrostatics
Elimination Tool:
If the potential at a point which is 1m from a charge is 1 volt, then the potential at a point which is 2m from the same charge will be:
PMC 2020
Physics
Electrostatics
Elimination Tool:
If a potential difference of V appears on the plates of a capacitor with capacitance C, then energy stored will be:
The energy stored in the capacitor is written as:
NUMS 2019 Cancelled
Physics
Electrostatics
Elimination Tool:
Two positive point charges Q1 = 16 microCoulombs and Q2 = 4 micro Coulombs are seperated in a line by a distance of 3 meters. Find the spot on the line between the charges where the electric field is zero.
NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:
A parallel plate capacitor has a capacitance C. If the distance between the plates and the plates both halves, the capacitance will be?
NUMS 2017
Physics
Electrostatics
Elimination Tool:
Two conducting objects X and Y having a charge Q on them exert force F on each other. Now third conductor having a charge -Q is touched to X and is removed, the new force between X and Y will be:
If we double the separation between two charges then coulomb’s force will become?
NUMS 2020
Physics
Electrostatics
Elimination Tool:
When a charged particle is projected perpendicular to a magnetic field:
NUMS 2016
Physics
Electrostatics
Elimination Tool:
If the potential difference of 1 volt is applied across the end of a conductor and the current flowing through the conductor is one ampere then the resistance of the conductor is said to be?
NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:
If magnitude of charges is doubled and distance between them is halved, the force between them will become?
If the medium is changed from air to diamond what would be the effect in potential difference of a capacitor?
Two charges are separated by a distance r, in presence of which of the following the force between them will be minimum?
If voltage of a capacitor is 60 v then what will be the voltage if diamond is present as •dielectric
In what form is the energy stored in a charged capacitor?
PMC 2020
Physics
Electrostatics
Elimination Tool:
Energy required to charge a capacitor of 5 micro farad by connecting D.0 source of 20 KV is a) 10kJ b) 5k1 c) 21:.1 d) 11(1
If two point charges of charge q1 and q2 are placed at distance d. The force between them is proportional to:
PMC Sample 2
Physics
Electrostatics
Elimination Tool:
The energy stored inside a capacitor is given by the relation:
NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:
SI unit of electric field is volt/meter which is equivalent to:
NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:
The greek word “xeros” and “graphos” means:
PMC Sample 2
Physics
Electrostatics
Elimination Tool:
An electron is placed between two charged plates the upper plate is positively charged and the lower plate is negative charged. The electron will
A particle carrying charge of 2e falls through a potential difference of 3.0 V. Calculate energy acquired by it.
NTS 2015 DUHS and JSMU
Physics
Electrostatics
Elimination Tool:
If 60 capacitors each of Capacitance C are connected in series and then in parallel what is the ratio of Cs/Cp=?
A charge is moving with velocity v, it enters a uniform electric field E. The direction of v and E are not parallel. What is the path of the charge particle inside the electric field?
PMC Sample 2
Physics
Electrostatics
Elimination Tool:
The total outward flux over any closed hypothetical surface called _____ is equal to the total charge enclosed divided by ε irrespective of how the charge is distributed.
NTS 2015 DUHS and JSMU
Physics
Electrostatics
Elimination Tool:
What is the change in kinetic energy of a proton when it is accelerated through a potential difference of 2MV?
PMC Sample 1
Physics
Electrostatics
Elimination Tool:
If a closed surface contains two equal and opposite The net electric flux from the surface will be
An electric rod of 2000 watts rating boils a certain quantity of water in 10 minutes, the heat which generated for boiling this water is:
NTS 2013
Physics
Electrostatics
Elimination Tool:
If a body A is charged with charge q, and is touched with neutral body B and then with neutral body C. What will be the charge on C after the contact?
If a dielectric material is placed between two plates of a capacitor, the net capacitance of the capacitor:
NTS 2018
Physics
Electrostatics
Elimination Tool:
A 2uF capacitor is connected to a 10 V dc supply, if ‘Q’ represents the charge on each plate and ‘E’ the energy stored on each plate, which of the following represents the values of Q and E?
NUMS 2019 Cancelled
Physics
Electrostatics
Elimination Tool:
A charge is situated in the center of cube. The electric flux through one of the faces of the cube is.
What will be the change in potential energy if an electron moves 4.5m in the direction of an electric field of strength 325 N/C?
Two positive charges are separated by 3m. Another positive charge is placed between them. If the charge is moved along y axis the system will be in equilibrium
Electric field strength of a point charge is E and electric potential is V, at a distance ‘r’ from the point charge. What is the electric potential at a point for the same point charge where electric field strength is E/4?
UHS 2019
Physics
Electrostatics
Elimination Tool:
The net charge flowing through any section of the conductor per unit time is known as?
NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:
A 10 nanofarad (10 x 10-9 F) parallel plate capacitor holds a charge of magnitude 50 µC on each plate.If the plates are separated by a distance of 0.885mm, what is the area of each plate?
NTS 2014
Physics
Electrostatics
Elimination Tool:
The force between two point charges separated by a certain distance is F. If each charge is doubled and the distance between them is also doubled, then the force would be:
PMC Sample 1
Physics
Electrostatics
Elimination Tool:
Two identical conducting spheres A and B carry equal charge Q. They are separated by a distance much larger than their diameters. A third identical conducting sphere C carries charge 2Q. Sphere C is first touched to A, then to I3, and finally removed. As a result, the electrostatic force between A and B, which was originally F, becomes:
An electron is situated midway between two parallel plates 0.5 cm apart. One of the plates is maintained at a potential of 60 volts above the other. The force on the electron is (e = -1.6×10-19)
NTS 2011
Physics
Electrostatics
Elimination Tool:
What is true about the electric field and electric force?
NUMS 2016
Physics
Electrostatics
Elimination Tool:
Two positive point charges are placed 2m apart. The electric potential at midpoint due to these two charges will be _____:
NUMS 2020
Physics
Electrostatics
Elimination Tool:
Two capacitors C1 = 2μF and C2 = 4μF, are connected in series across a 100 V supply.
Find the effective capacitance:
NTS 2010
Physics
Electrostatics
Elimination Tool:
The magnitude of electrostatic acceleration force between two point charges is directly proportional to the product of the magnitude of the charges and inversely proportional to the square of the distance between them.” This is known as:
NTS 2015 SMBBMC
Physics
Electrostatics
Elimination Tool:
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.
The energy supplied by the cell to the charge carriers is derived from the conversion of:
NUMS 2016
Physics
Electrostatics
Elimination Tool:
e/m for an electron is ______, when the charge of an electron is 1.6 x 10-19C and mass of electron is 9.1 x 10-31kg.
NUMS 2019 Reconduct
Physics
Electrostatics
Elimination Tool:
A proton has mass m and charge q. It is suspended in electric and gravitational field. What is the magnitude of electric field?
PMC Sample 3
Physics
Electrostatics
Elimination Tool:
Two charges of same magnitude are placed, the force between the charges will be maximum in presence of which medium?
A sphere of charge +Q is fixed in a position. A smaller sphere of +q is placed near the larger sphere and released from the rest. The small sphere will move away from the large sphere with?
NTS 2014
Physics
Electrostatics
Elimination Tool: