Objective Questions

Questions (1820)

#	Question	Topic	Actions
1001	If the distance between the two point charges is doubled, the force between the…	PHY 102 Past Questions	View
1002	Find the value of two equal charges if they repel each other with a force of 0.…	PHY 102 Past Questions	View
1003	Introducing a non-conducting medium (dielectri	PHY 102 Past Questions	View
1004	Find the value of two equal charges that repel each other with a force of 0.5N …	PHY 102 Past Questions	View
1005	When a glass rod is rubbed with silk, which of the following statements best de…	PHY 102 Past Questions	View
1006	The expression [not shown - refers to an equation/diagram in the original] is a…	PHY 102 Past Questions	View
1007	The diagram below shows a positive point charge Q. Which of the following descr…	PHY 102 Past Questions	View
1008	The electric field 2.0 m from a point charge has a magnitude of 8.0x104 N/C. Wh…	PHY 102 Past Questions	View
1009	The working principle of transformer depends on...	PHY 102 Past Questions	View
1010	"The sum of the emfs and potential differences around a closed loop equals zero…	Last Minute Prep	View
1011	The apparent power developed in an R-L circuit is 30VA. If source is 36V, 50Hz …	Last Minute Prep	View
1012	It is important to boost generated current before transmission. The transformer…	Last Minute Prep	View
1013	Four capacitors C₁ = 2μF, C₂ = 3μF, C₃ = 4μF, C₄ = 5μF are connected as shown. …	Last Minute Prep	View
1014	A parallel plate capacitor has area 2000cm², plates 1cm apart. Original V₀ = 30…	Last Minute Prep	View
1015	A pentavalent impurity has	Last Minute Prep	View
1016	Determine the force between two protons placed at a distance 1 um apart.	PHY 102 Past Questions	View
1017	Three charges +1mC, -1mC and -1mC are placed at the edges A, B & C respectively…	PHY 102 Past Questions	View
1018	Two point charges are 6 cm apart. They are moved to a new separation of 3 cm. B…	PHY 102 Past Questions	View
1019	Gauss's law can be applied to the following except	PHY 102 Past Questions	View
1020	Three charges Q1=6.0 uC, Q2=-6.0 uC and Q3=4.0 uC are located at -0.6i, 0.6i an…	PHY 102 Past Questions	View
1021	If a 50μF capacitor is connected across ν = 30 sin(2000πt) volts. What is the f…	Last Minute Prep	View
1022	A sinusoidal voltage V(t) = 200 sin ωt is applied to a series RLC with L = 10mH…	Last Minute Prep	View
1023	The plates of a parallel-plate capacitor are 2mm apart, 5m² in area, in vacuum.…	Last Minute Prep	View
1024	A 2μF capacitor charged to 50V is discharged through a 1MΩ resistor. Find time …	Last Minute Prep	View
1025	An inductor connected to 24V, 50Hz source causes 0.5A to flow. Determine induct…	Last Minute Prep	View
1026	Which of the following statements in electrostatics is incorrect?	PHY 102 Past Questions	View
1027	A 2-μF and a 1-μF capacitor are in series and charged. They store charges P and…	Last Minute Prep	View
1028	Which of the following factors determine(s) the force exerted on a charged body…	PHY 102 Past Questions	View
1029	A point charge, -30 uC, is placed at the origin of the coordinates. Find the el…	PHY 102 Past Questions	View
1030	Two charges are located on the positive x-axis. q1=2x10-9 C is 2 cm from the or…	PHY 102 Past Questions	View
1031	An electron is positioned in an electric field. The force on the electron due t…	PHY 102 Past Questions	View
1032	The emf induced in a rotating coil depends on: I. number of turns of the coil; …	PHY 102 Past Questions	View
1033	Find the total flux (in N.m2/C) when two charges q1=15uC and q2=-17uC are place…	PHY 102 Past Questions	View
1034	A piece of fur is rubbed on a hard rubber rod, giving the rod a negative charge…	PHY 102 Past Questions	View
1035	The distance between two positive charges 6uC and 8uC is 50 cm. Calculate the e…	PHY 102 Past Questions	View
1036	A positive charged particle with mass m=10 mg and charge Q=0.10 mC is placed ju…	PHY 102 Past Questions	View
1037	If the two charges are similar, then Coulomb's law implies that the force F is:…	PHY 102 Past Questions	View
1038	Which of the following is NOT a property of electric line of force?	PHY 102 Past Questions	View
1039	The surface charge density on a sphere with radius R=1 cm is 796 uC/m2. Determi…	PHY 102 Past Questions	View
1040	Which of the following is correct about the acceleration of a positively charge…	PHY 102 Past Questions	View
1041	A uniform electric field within a parallel plate capacitor has field strength E…	PHY 102 Past Questions	View
1042	The force per unit charge is known as:	PHY 102 Past Questions	View
1043	The process by which an emf is induced in a conductor when there is a change in…	Last Minute Prep	View
1044	The apparent power in an R-L circuit is 30VA. Source 36V, 50Hz, resistor 40Ω. D…	Last Minute Prep	View
1045	Find the work done (in eV) in taking qₑ = 20μC from X to Y if potential differe…	Last Minute Prep	View
1046	The potential is given as V(x,y) = 3x + 4y. Determine the magnitude of the elec…	PHY 102 Past Questions	View
1047	Calculate the electric field in a spherical Gaussian surface at a point two-thi…	PHY 102 Past Questions	View
1048	The electric field at 2.0 m from a point charge is 8.0x104 N/C. What is the fie…	PHY 102 Past Questions	View
1049	Electric field is uniform when it is	PHY 102 Past Questions	View
1050	An electric spark is observed between two parallel plates 2.5 cm apart in air. …	PHY 102 Past Questions	View
1051	Find the electric field at a point 0.2 m from a charge of 20 uC. What force wil…	PHY 102 Past Questions	View
1052	The electric field associated with a uniformly charged hollow metallic sphere i…	PHY 102 Past Questions	View
1053	What is the magnitude of an electric field in which the force on an electron eq…	PHY 102 Past Questions	View
1054	How much current does a 60W bulb draw at 240V?	Last Minute Prep	View
1055	Two identical batteries, each 18V and 1Ω internal, wired in parallel across a 4…	Last Minute Prep	View
1056	The equation of alternating current is i = 42.4 sin 628t. The average value is	Last Minute Prep	View
1057	Electric field strength enclosed by Gaussian surface is	Last Minute Prep	View
1058	The equation of a sinusoidal voltage is V = 320 sin ωt. Calculate the r.m.s. va…	Last Minute Prep	View
1059	When current in a coil is doubled and turns halved, the magnetic field at its c…	Last Minute Prep	View
1060	A straight conductor 25cm moves at 30m/s in 0.4T field. If resistance is 0.8Ω, …	Last Minute Prep	View
1061	Characteristics of lines of force include: i. they do not intersect; ii. they s…	Last Minute Prep	View
1062	Which of the following cannot be the units of electric field intensity?	PHY 102 Past Questions	View
1063	Determine the force on an electron of charge 1.6x10-19 C placed in a uniform el…	PHY 102 Past Questions	View
1064	What is the correct SI unit of electric flux?	PHY 102 Past Questions	View
1065	Electric field is a:	PHY 102 Past Questions	View
1066	What is the electric field E experienced by a charge of magnitude 5 nC at a poi…	PHY 102 Past Questions	View
1067	Equipotential surfaces associated with an electric dipole are:	PHY 102 Past Questions	View
1068	A charge of 5 uC is 120 m from a point where the potential is 10 V. How far is …	PHY 102 Past Questions	View
1069	In case the charges are similar, the force is of?	Last Minute Prep	View
1070	Two wires A and B have identical lengths and material. Wire A has four times re…	Last Minute Prep	View
1071	The total flux emerging from a given charge is independent of the medium surrou…	PHY 102 Past Questions	View
1072	Direction of rotation of a motor is determined by:	PHY 102 Past Questions	View
1073	A transformer assumed to be 100% efficient has 2500 turns in the primary and 50…	PHY 102 Past Questions	View
1074	The image of an object placed 15 cm from a convex lens having focal length 10 c…	PHY 102 Past Questions	View
1075	Arrange the forces in order of increasing strength:	PHY 102 Past Questions	View
1076	One charge of 2 C is 1.5 m away from 3 C. What is the force they exert on each …	PHY 102 Past Questions	View
1077	Which of the following are correct about the acceleration of a charged particle…	PHY 102 Past Questions	View
1078	A uniform electric field of 4.50 kN/C passes through a rectangular surface of a…	PHY 102 Past Questions	View
1079	Which of the following are correct about the direction of electric field E at a…	PHY 102 Past Questions	View
1080	The electric flux is negative when the angle between E and A is?	PHY 102 Past Questions	View
1081	Which is/are correct? I. reverse biasing withdraws holes from N-type; II. rever…	Last Minute Prep	View
1082	Which of the following is TRUE of the application of Gauss's law?	PHY 102 Past Questions	View
1083	The electric flux through a closed surface depends on the?	PHY 102 Past Questions	View
1084	Which of the following is correct about the application of Gauss's law in the d…	PHY 102 Past Questions	View
1085	Determine the electric flux emerging from a circular surface of radius 0.025 m …	PHY 102 Past Questions	View
1086	The electric flux is defined as:	PHY 102 Past Questions	View
1087	Capacitance is directly proportional to the area of?	Last Minute Prep	View
1088	Which assumptions were made by Coulomb? I. bodies small compared to distance; I…	Last Minute Prep	View
1089	Which circuit element stores energy in electromagnetic field?	Last Minute Prep	View
1090	For any charge configuration, the electric field at a point is ______ to the eq…	PHY 102 Past Questions	View
1091	What must the charge (sign and magnitude) of a particle of mass 5 g be for it t…	PHY 102 Past Questions	View
1092	If the distance between two closely spaced parallel plates is halved (at fixed …	PHY 102 Past Questions	View
1093	Calculate the flux through a coil loop of area 0.45 m2 when its PLANE is inclin…	PHY 102 Past Questions	View
1094	A charged particle travelling in a uniform field could have a circular trajecto…	PHY 102 Past Questions	View
1095	A uniform magnetic field will cause a charge to move in a circle if the charge …	PHY 102 Past Questions	View
1096	Which of the following is TRUE about magnetic flux?	PHY 102 Past Questions	View
1097	What is the SI unit of magnetic flux?	PHY 102 Past Questions	View
1098	1 Ohm is the ratio of?	Last Minute Prep	View
1099	Which instrument is used for measuring potential difference?	Last Minute Prep	View
1100	As compared to short wires, long wires have ....	Last Minute Prep	View

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