Objective Questions

Questions (1819)

#	Question	Topic	Actions
1301	Work done in charging a capacitor is	Test Compilation PHY 102 2	View
1302	Two identical capacitors C in parallel, then in series with third C. Equivalent…	Test Compilation PHY 102 2	View
1303	Long wire current north, B field vertically down. Force direction?	Test Compilation PHY 102 2	View
1304	E.M.F can be induced by	Test Compilation PHY 102 2	View
1305	Electric field of uniformly charged hollow metallic sphere is greatest at:	Test Compilation PHY 102 2	View
1306	capacitor 22µF, resistor 200Ω, series across 12V 50Hz. Impedance?	Test Compilation PHY 102 2	View
1307	KCL deals with conservation of?	Test Compilation PHY 102 2	View
1308	Electric flux through closed surface depends on	Test Compilation PHY 102 2	View
1309	For ohmic resistor, resistance is proportionality constant for	Test Compilation PHY 102 2	View
1310	Constant ke in Coulomb's law is dimensionally	Test Compilation PHY 102 2	View
1311	Used for measuring potential difference:	Test Compilation PHY 102 2	View
1312	I = 15 sin ωt. RMS current?	Test Compilation PHY 102 2	View
1313	v = 290 sin ωt, ω=1256 rad/s. RMS and instantaneous at t=0.5s, period?	Test Compilation PHY 102 2	View
1314	Voltage=4V, charge=16C. Capacitance?	Test Compilation PHY 102 2	View
1315	Distance between two point charges doubled, force decreases by	Test Compilation PHY 102 2	View
1316	An equipotential surface connects points with	Test Compilation PHY 102 2	View
1317	When capacitors are connected in series, the equivalent capacitance is ……… each…	Test Compilation PHY 102 2	View
1318	The capacitance of a capacitor is the ratio	Test Compilation PHY 102 2	View
1319	Which of following circuit element stores energy in electromagnetic field?	Test Compilation PHY 102 2	View
1320	A 2µF capacitor is charged to 50V and then discharged through a 1 MΩ resistor. …	Test Compilation PHY 102 2	View
1321	Which of the following is true of the capacitance C of a parallel plate capacit…	Test Compilation PHY 102 2	View
1322	Find the maximum torque on a 100-turn square loop of wire of 10.0 cm on a side …	Test Compilation PHY 102 2	View
1323	Which of the following is the correct relationship between PEAK value and R.M.S…	Test Compilation PHY 102 2	View
1324	Find the electric field intensity at a distance of 20 cm from a charge of 2 nC.	Test Compilation PHY 102 2	View
1325	Which is/are correct about the acceleration experienced by a charged particle i…	Test Compilation PHY 102 2	View
1326	Strength of magnetic field is known as	Test Compilation PHY 102 2	View
1327	The change in potential energy of a unit charge between two points in an electr…	Test Compilation PHY 102 2	View
1328	An electron is travelling at right angles to a uniform magnetic field of flux d…	Test Compilation PHY 102 2	View
1329	The rate of change of potential with respect to distance is called as?	Test Compilation PHY 102 2	View
1330	Which of the following is not the same as watt?	Test Compilation PHY 102 2	View
1331	Calculate the capacitance of two plates of area 4 cm² separated by 1 mm.	Test Compilation PHY 102 2	View
1332	Electric field is steepest in the direction in which the potential	Test Compilation PHY 102 2	View
1333	Direction of rotation of motor is determined by	Test Compilation PHY 102 2	View
1334	Calculate the resonant frequency of an R-L-C series circuit with R = 300 Ω, C =…	Test Compilation PHY 102 2	View
1335	step-down transformer changes	Test Compilation PHY 102 2	View
1336	thin uncharged conducting spherical shell has a charge q carefully placed at it…	Test Compilation PHY 102 2	View
1337	The law which states 'an induced e.m.f. always gives rise to a current whose ma…	Test Compilation PHY 102 2	View
1338	Answer saved A dielectric K = 2 is inserted between the plates of a 20µF capaci…	Test Compilation PHY 102 3	View
1339	metal ball of 10 kg with 5 C charge moves perpendicular to magnetic field of 5 …	Test Compilation PHY 102 3	View
1340	The power dissipated by a 72 Ω resistor connected to sinusoidal AC source is 24…	Test Compilation PHY 102 3	View
1341	given RLC circuit: R = 100 Ω, L = 1 H, C = 10 µF, source 200 sin ωt with ω = 40…	Test Compilation PHY 102 3	View
1342	The force between two charges in vacuum is 0.24 N. Medium changed to relative p…	Test Compilation PHY 102 3	View
1343	By accelerating magnet inside coil, current in it	Test Compilation PHY 102 3	View
1344	The equation of a current is i = I_m sin(2ωt). Frequency in Hz?	Test Compilation PHY 102 3	View
1345	Find electric field at 0.2 m from 20 mC charge. Force on 10 mC charge at that p…	Test Compilation PHY 102 3	View
1346	The current is zero in a conductor when no potential difference is applied beca…	Test Compilation PHY 102 3	View
1347	Electric field strength related to Hall voltage is given by	Test Compilation PHY 102 3	View
1348	Whenever there is force on magnetic pole, there exists	Test Compilation PHY 102 3	View
1349	Which of the following is the correct unit of Coulomb’s constant?	Test Compilation PHY 102 3	View
1350	20 kΩ resistor in series with 40 kΩ. What R in parallel with equivalent gives 2…	Test Compilation PHY 102 3	View
1351	Magnitude of electric field where force on electron equals its weight? m_e = 9.…	Test Compilation PHY 102 3	View
1352	E.M.F for a coil depends upon	Test Compilation PHY 102 3	View
1353	Faraday’s law indicates that a changing magnetic field produces	Test Compilation PHY 102 3	View
1354	loop of wire carrying 2.0 A, right triangle with two equal sides 15 cm each. B …	Test Compilation PHY 102 3	View
1355	The rate at which electrical energy is used may be measured in:	Test Compilation PHY 102 3	View
1356	Capacitor is a device to?	Test Compilation PHY 102 3	View
1357	Determine the force on an electron of charge 1.6 × 10⁻¹⁹ C placed in a uniform …	Test Compilation PHY 102 3	View
1358	Transformer core losses include:	Test Compilation PHY 102 3	View
1359	In case the charges are similar the force is of?	Test Compilation PHY 102 3	View
1360	If the forces F between two charged particles is measured for various distances…	Test Compilation PHY 102 3	View
1361	Which one of the following parameters is NOT used to determine magnetic force o…	Test Compilation PHY 102 3	View
1362	Electric motor input power 50 W, activated for 60 s, produces work 2970 J. Effi…	Test Compilation PHY 102 3	View
1363	Three capacitors each of 3 F are connected in series. Equivalent capacitance?	Test Compilation PHY 102 3	View
1364	Radius R of circular path for electron mass Me, charge q, velocity V, field B:	Test Compilation PHY 102 4	View
1365	In A.C. circuits, one of the following statements is incorrect	Test Compilation PHY 102 3	View
1366	Combination of three equal resistances in series is equivalent to 90 W. Equival…	Test Compilation PHY 102 3	View
1367	The earth is taken at a potential of?	Test Compilation PHY 102 3	View
1368	6.0×10⁻⁶ C charge located 4.0 m from –3.0×10⁻⁶ C charge. Electric potential hal…	Test Compilation PHY 102 3	View
1369	In a series circuit, which parameter remains constant across all elements?	Test Compilation PHY 102 3	View
1370	Ohm’s law can be used only for a ______________ circuit or component	Test Compilation PHY 102 3	View
1371	What must the charge (sign and magnitude) of a particle of mass 5 g be for it t…	Test Compilation PHY 102 3	View
1372	Select the option that best describes a dielectric.	Test Compilation PHY 102 3	View
1373	Parallel plate capacitor has capacitance C. Area doubled, distance halved. New …	Test Compilation PHY 102 3	View
1374	'Sum of currents into a junction equals sum out' is consequence of:	Test Compilation PHY 102 3	View
1375	Three resistors 2Ω, 4Ω, 5Ω in parallel across 20 V. Total current?	Test Compilation PHY 102 3	View
1376	Force due to magnetic field and velocity is	Test Compilation PHY 102 3	View
1377	Inductor connected to 24 V, 50 Hz AC, current 0.5 A. Inductance?	Test Compilation PHY 102 3	View
1378	Which has no effect on turning effect (torque) of electric motor coil?	Test Compilation PHY 102 3	View
1379	Which describes an example of induced magnetism?	Test Compilation PHY 102 3	View
1380	Ratio of resistivity of two wires: same length, same resistance, areas 2 m² and…	Test Compilation PHY 102 3	View
1381	Capacitor with air: 3.0 µF. Dielectric constant 2.8 inserted. New capacitance?	Test Compilation PHY 102 3	View
1382	Unit of resistivity?	Test Compilation PHY 102 3	View
1383	Efficiency of motor: 240 V, 12 A, lifts 600 kg at 0.15 m/s.	Test Compilation PHY 102 3	View
1384	In an RLC circuit, always used as vector reference?	Test Compilation PHY 102 3	View
1385	Strength of magnetic field known as	Test Compilation PHY 102 3	View
1386	Fuse in lighting circuit is made of	Test Compilation PHY 102 4	View
1387	Capacitance of a capacitor is the ratio	Test Compilation PHY 102 4	View
1388	In Faraday’s law, minus sign is expression of	Test Compilation PHY 102 4	View
1389	For a cell with EMF E, internal resistance r, external R. EMF expression?	Test Compilation PHY 102 4	View
1390	Series RLC: R=10Ω, L=0.5H, C=10μF. Frequency for max current?	Test Compilation PHY 102 4	View
1391	1 μF and 2 μF capacitors in series across 1000 V. Voltage across each?	Test Compilation PHY 102 4	View
1392	Which quantity is not affected by magnetic field?	Test Compilation PHY 102 4	View
1393	Unit of temperature coefficient?	Test Compilation PHY 102 4	View
1394	Introducing a non-conducting medium between two charges, force between them?	Test Compilation PHY 102 4	View
1395	battery of emf 4v and internal resistance of 2 Ohms is joined to a resistor of …	Test Compilation PHY 102 4	View
1396	One of the following statements about electrical potential energy is incorrect	Test Compilation PHY 102 4	View
1397	Capacitance 15F and 5F are connected in parallel across a 20v battery. What is …	Test Compilation PHY 102 4	View
1398	The electric field is said to be uniform if it is:	Test Compilation PHY 102 4	View
1399	Total number of magnetic field lines passing through an area is called	Test Compilation PHY 102 4	View
1400	battery with emf 24 V connected to 6 Ω resistor, current 3 A. Terminal p.d.?	Test Compilation PHY 102 4	View

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