Questions (1820)

# Question Topic Actions
1601
What is the initial step described for discharging a capacitor in an RC circuit?
Current Electricity View
1602
How does the charge on the capacitor plates behave during the discharge of an R…
Current Electricity View
1603
How does the current through the resistor behave during the discharge of an RC …
Current Electricity View
1604
Which of the following is the differential equation describing the charge 'q' o…
Current Electricity View
1605
What is electrostatics primarily concerned with?
ELECTROSTATICS View
1606
Which statement correctly describes the charge of subatomic particles within an…
ELECTROSTATICS View
1607
How is a body typically charged negatively?
ELECTROSTATICS View
1608
Why are electrons, rather than protons, typically involved in the charging of a…
ELECTROSTATICS View
1609
What is the fundamental interaction between like and unlike charges?
ELECTROSTATICS View
1610
Which of the following best describes a conductor?
ELECTROSTATICS View
1611
What happens when an electric field is applied across an insulator?
ELECTROSTATICS View
1612
Which characteristic is typical of semiconductors?
ELECTROSTATICS View
1613
What is polarization in the context of electrostatics?
ELECTROSTATICS View
1614
A charged comb attracting small pieces of paper demonstrates which principle?
ELECTROSTATICS View
1615
In the process of charging by induction, after a charged object is brought near…
ELECTROSTATICS View
1616
Attraction between two bodies in electrostatics definitively proves that:
ELECTROSTATICS View
1617
What is the primary mechanism for charge transfer when two different bodies are…
ELECTROSTATICS View
1618
According to the triboelectric series mentioned, if glass is rubbed with wool, …
ELECTROSTATICS View
1619
According to the document, the work done by the electrostatic field in m…
ELECTROSTATICS View
1620
Which of the following statements is TRUE regarding an electrostatic field, bas…
ELECTROSTATICS View
1621
An equipotential surface is defined as a surface where the force must be perpen…
ELECTROSTATICS View
1622
According to the document, the work done by us in moving a charge from o…
ELECTROSTATICS View
1623
The electric potential due to a given charge at a point is defined as the work …
ELECTROSTATICS View
1624
The unit of electrostatic potential is explicitly stated in the document as:
ELECTROSTATICS View
1625
Both electrostatic potential energy and electrostatic potential are described i…
ELECTROSTATICS View
1626
For a positive charge Q, as you move away from the charge, the electrost…
ELECTROSTATICS View
1627
The work W done when moving a charge q between two points A and B…
ELECTROSTATICS View
1628
When a solid spherical conductor is charged, where are the charges distributed,…
ELECTROSTATICS View
1629
At electrostatic equilibrium, the electric field inside a conductor is:
ELECTROSTATICS View
1630
At electrostatic equilibrium, the electric field lines are always directed ____…
ELECTROSTATICS View
1631
Between two parallel oppositely charged sheets separated by a distance d…
ELECTROSTATICS View
1632
If a charge is launched at a right angle to a uniform electric field, the docum…
ELECTROSTATICS View
1633
If a charge q accelerates from rest due to a potential difference V
ELECTROSTATICS View
1634
According to the document, what is the definition of electric flux throu…
ELECTROSTATICS View
1635
When is the electric flux through a surface equal to zero?
ELECTROSTATICS View
1636
According to the document, what does a negative electric flux into a surface si…
ELECTROSTATICS View
1637
What does Gauss's Law state about the electric flux out of any closed su…
ELECTROSTATICS View
1638
A spherical surface encloses charges of 2 µC, 4 µC, -3 µC, and -5 µC. Using Gau…
ELECTROSTATICS View
1639
According to the document, if a charge is located outside a closed surfa…
ELECTROSTATICS View
1640
What characteristic of a conservative field, such as the electrostatic field, i…
ELECTROSTATICS View
1641
What is the total work done in moving a charge in a complete cycle within a con…
ELECTROSTATICS View
1642
According to the document, if a negative charge (q) is moved from point A to po…
ELECTROSTATICS View
1643
The document states that the Electric Potential Energy (EPE) for moving a 2µC c…
ELECTROSTATICS View
1644
What is the definition of electric potential due to a given charge at a …
ELECTROSTATICS View
1645
What are the units of electrostatic potential, as stated in the document?
ELECTROSTATICS View
1646
What is a key characteristic of electric field lines at the surface of a conduc…
ELECTROSTATICS View
1647
For two parallel oppositely charged sheets separated by a distance 'd', what is…
ELECTROSTATICS View
1648
When a positive charge is accelerated by an electric field, what happens to its…
ELECTROSTATICS View
1649
According to the document, why do electric field lines never cross?
ELECTROSTATICS View
1650
Which of the following characteristics defines a uniform electric field, as des…
ELECTROSTATICS View
1651
What does electric flux physically represent through a surface, according to th…
ELECTROSTATICS View
1652
When is electric flux through a surface considered positive, according to the d…
ELECTROSTATICS View
1653
What is the core statement of Gauss's Law as presented in the document?
ELECTROSTATICS View
1654
A spherical surface encloses 4 charges: +2 µC, +4 µC, -3 µC, and -5 µC. What is…
ELECTROSTATICS View
1655
If a charge is located outside a closed surface, how does it contribute to the …
ELECTROSTATICS View
1656
What is a defining characteristic of work done in an electrostatic field, as st…
ELECTROSTATICS View
1657
What is an equipotential surface, as described in the document?
ELECTROSTATICS View
1658
For a positive charge Q, how does the electrostatic potential change as you mov…
ELECTROSTATICS View
1659
On a non-spherical charged conductor at electrostatic equilibrium, where do cha…
ELECTROSTATICS View
1660
What is the electric field inside a conductor that is in electrostatic equilibr…
ELECTROSTATICS View
1661
When a charge is launched at a right angle to a uniform electric field between …
ELECTROSTATICS View
1662
According to the document, what is the relationship between a loss in kinetic e…
ELECTROSTATICS View
1663
What is the unit of electric flux?
ELECTROSTATICS View
1664
Derived unit Tesla is related to
PHY 102 Past Questions View
1665
The direction of field at any point can be determined by drawing a?
PHY 102 Past Questions View
1666
answ Which of the following statements is TRUE?
PHY 102 Past Questions View
1667
Which of the following is correct about the acceleration of a positively charge…
PHY 102 Past Questions View
1668
When silicon is doped with boron, it becomes a(n):
PHY 102 Past Questions View
1669
When silicon is doped with boron, it becomes
PHY 102 Past Questions View
1670
The reciprocal of resistivity is
PHY 102 Past Questions View
1671
The SI unit of electric charge is?
PHY 102 Past Questions View
1672
Max E field in dry air = 3×10⁶ V/m (typical). Plates 3 cm apart. Max voltage?
PHY 102 Past Questions View
1673
In moving coil galvanometer, pole faces of U-shaped magnet are made concave
PHY 102 Past Questions View
1674
Tesla is equal to
PHY 102 Past Questions View
1675
external resistance R is connected to a cell of internal resistance r, then the…
PHY 102 Past Questions View
1676
transformer which is 80% efficient gives an output of 12V and 4A. What is the i…
PHY 102 Past Questions View
1677
Parallel plate capacitor: area 2 m², separation 1 m, charge 1.77×10⁻¹¹ C. Volta…
PHY 102 Past Questions View
1678
When capacitors are connected in series, equivalent capacitance is … each indiv…
PHY 102 Past Questions View
1679
An equipotential surface connects points with
PHY 102 Past Questions View
1680
The capacitance of a capacitor is the ratio
PHY 102 Past Questions View
1681
given RLC circuit: R = 100 Ω, L = 1 H, C = 10 µF, source 200 sin ωt with ω = 40…
PHY 102 Past Questions View
1682
The force between two charges in vacuum is 0.24 N. Medium changed to relative p…
PHY 102 Past Questions View
1683
loop of wire carrying 2.0 A, right triangle with two equal sides 15 cm each. B …
PHY 102 Past Questions View
1684
In A.C. circuits, one of the following statements is incorrect
PHY 102 Past Questions View
1685
The earth is taken at a potential of?
PHY 102 Past Questions View
1686
Which has no effect on turning effect (torque) of electric motor coil?
PHY 102 Past Questions View
1687
Which describes an example of induced magnetism?
PHY 102 Past Questions View
1688
Ratio of resistivity of two wires: same length, same resistance, areas 2 m² and…
PHY 102 Past Questions View
1689
Capacitor with air: 3.0 µF. Dielectric constant 2.8 inserted. New capacitance?
PHY 102 Past Questions View
1690
Unit of resistivity?
PHY 102 Past Questions View
1691
1 μF and 2 μF capacitors in series across 1000 V. Voltage across each?
PHY 102 Past Questions View
1692
Which quantity is not affected by magnetic field?
PHY 102 Past Questions View
1693
Unit of temperature coefficient?
PHY 102 Past Questions View
1694
Introducing a non-conducting medium between two charges, force between them?
PHY 102 Past Questions View
1695
The capacitance is directly proportional to the area of?
PHY 102 Past Questions View
1696
Which is correct about total flux through a sphere of radius r around a point c…
PHY 102 Past Questions View
1697
Work function of platinum twice that of calcium. Min photon energy for Pt is E.…
PHY 102 Past Questions View
1698
For an electron, magnitude of force on it in B field?
PHY 102 Past Questions View
1699
Light bulb: input 50W for 60s, heat produced 2400J. Efficiency?
PHY 102 Past Questions View
1700
Process by which emf is induced when magnetic flux changes is called
PHY 102 Past Questions View