Objective Questions

Questions (1820)

#	Question	Topic	Actions
801	A coil has 45 turns and an area of 1.8 x 10⁻² m². If the torque on the coil is …	PHY 102 Past Questions	View
802	Which of the following statement(s) is/are not correct about Gauss's law…	PHY 102 Past Questions	View
803	A parallel plate capacitor has an area of 2000 cm², and the plates are 1 cm apa…	PHY 102 Past Questions	View
804	A proton has magnetic field due to its spin on its axis. The field is similar t…	PHY 102 Past Questions	View
805	When a quadrivalent element is doped with a pentavalent element, it becomes	PHY 102 Past Questions	View
806	An a.c. waveform given as v = 290sin ωt. If ω = 1256 rad/s, find the r.m.s and …	PHY 102 Past Questions	View
807	In a parallel-plate capacitor, the distance d between the plates is 3cm, the ar…	PHY 102 Past Questions	View
808	A coil has 45 turns and an area of 1.8 x 10^-2 m². If the torque on t…	PHY 102 Past Questions	View
809	Which of the following statement(s) is/are not correct about Gauss's law?	PHY 102 Past Questions	View
810	Four 20-Ω resistors are connected in parallel and the combination is conn…	PHY 102 Past Questions	View
811	An a.c. waveform is given as v = 290sin ωt. If ω = 1256 rad/s, find t…	PHY 102 Past Questions	View
812	Calculate the equivalent resistance between A and B in the circuit shown below,…	PHY 102 Past Questions	View
813	Which of the following is correct about the acceleration of a positively charge…	PHY 102 Past Questions	View
814	If two charges are similar, then Coulomb's law implies that the force F is:	PHY 102 Past Questions	View
815	A cyclotron is used to:	PHY 102 Past Questions	View
816	A cylindrical surface of radius 5 cm and height 2.5 cm is placed in a uniform e…	PHY 102 Past Questions	View
817	In a parallel-plate capacitor, the distance d between the plates is 3 cm, the a…	PHY 102 Past Questions	View
818	What must the charge (sign and magnitude) of a particle of mass 5 g be for it t…	PHY 102 Past Questions	View
819	Which of the following is the correct unit for volume charge density?	PHY 102 Past Questions	View
820	A given RLC circuit has R = 100Ω, L = 1H and C = 10µF, all connect…	PHY 102 Past Questions	View
821	Which of the following statement(s) is/are NOT correct about Gauss's law? I.…	PHY 102 Past Questions	View
822	Four 20-Ω resistors are connected in parallel and the combination is conn…	PHY 102 Past Questions	View
823	If the two charges are similar, then Coulomb's law implies that the force F is:…	PHY 102 Past Questions	View
824	A cylindrical surface of radius 5cm and height 2.5cm is placed in a uniform ele…	PHY 102 Past Questions	View
825	In a parallel-plate capacitor, the distance d between the plates is 3cm, the ar…	PHY 102 Past Questions	View
826	A given RLC circuit has R = 100 Ω, L = 1H and C = 10μF (assumed, inste…	PHY 102 Past Questions	View
827	A coil has 45 turns and an area of 1.8 × 10^-2m². If…	PHY 102 Past Questions	View
828	Which of the following statement(s) is/are correct about Gauss's law? I. Th…	PHY 102 Past Questions	View
829	A parallel plate capacitor has an area of 2000 cm², and the plates a…	PHY 102 Past Questions	View
830	A proton has a magnetic field due to its spin on its axis. The field is similar…	PHY 102 Past Questions	View
831	Calculate the equivalent resistance between A and B based on the following circ…	PHY 102 Past Questions	View
832	The relation between current and voltage in a capacitor is:	PHY 102 Past Questions	View
833	What is the correct SI unit of electric flux, φ?	PHY 102 Past Questions	View
834	An inductor of inductance 4.0mH has a resistance of 15Ω. What is its impedance …	PHY 102 Past Questions	View
835	Three charges Q1 = 6.0 mC, Q2 = -6.0 mC and Q3 = 4.0 mC are located at -0.6i, 0…	PHY 102 Past Questions	View
836	Lenz' law states that the direction of the induced emf and hence current	PHY 102 Past Questions	View
837	A parallel plate air capacitor is made of 0.2 m square tin plates and 1 cm apar…	PHY 102 Past Questions	View
838	Which one of the following quantities is correctly matched to its unit?	PHY 102 Past Questions	View
839	An inductor connected to an a.c. source 24V, 50Hz. If the inductor causes a cur…	PHY 102 Past Questions	View
840	Why is electrical energy usually transmitted at high voltage?	PHY 102 Past Questions	View
841	When a pentavalent impurity is added to a pure semiconductor, it becomes	PHY 102 Past Questions	View
842	A battery of emf 6V and internal resistance 3Ω is joined to a resistor of 10Ω. …	PHY 102 Past Questions	View
843	When capacitors are connected in parallel, what happens to the effective plate …	PHY 102 Past Questions	View
844	A parallel plate air capacitor with no dielectric is connected to a constant vo…	PHY 102 Past Questions	View
845	When capacitors are connected in series, ........ remains the same.	PHY 102 Past Questions	View
846	Three resistors (2Ω, 4Ω, 5Ω) are connected in parallel with a potential differe…	PHY 102 Past Questions	View
847	Which of the following is/are correct about insulator and semiconductor? (i) In…	PHY 102 Past Questions	View
848	If a parallel plate capacitor of plate area 2m² and plate separation 1m stores …	PHY 102 Past Questions	View
849	Which of the following is/are correct about a charge q moving with velocity v i…	PHY 102 Past Questions	View
850	Which of the following gives the magnetic force (F) on a charge (q) moving in a…	PHY 102 Past Questions	View
851	The equation of alternating current is i = 42.4sin(628t). Then the average valu…	PHY 102 Past Questions	View
852	The resonant frequency of a circuit is 1000kHz. If each of the capacitance and …	PHY 102 Past Questions	View
853	An inductor of 2.5H is connected across a 120V, 60Hz supply. Calculate the curr…	PHY 102 Past Questions	View
854	According to the equation r = (mv)/(Be), faster moving particles	PHY 102 Past Questions	View
855	A negative charge in an electric field experiences a force accelerating it due …	PHY 102 Past Questions	View
856	A sinusoidal voltage V(t) = 200sin(ωt) is applied to a series RLC circuit with …	PHY 102 Past Questions	View
857	________ is used for measuring potential difference.	PHY 102 Past Questions	View
858	Four 20-Ω resistors are connected in parallel and the combination is connected …	PHY 102 Past Questions	View
859	A point charge, -30μC, is placed at the origin of the coordinates. Find the ele…	PHY 102 Past Questions	View
860	An inductor, L = 1H, in series with a resistor, R = 150Ω, are connected to an a…	PHY 102 Past Questions	View
861	Find the potential difference required to give a helium nucleus (q = 3.2×10⁻¹⁹C…	PHY 102 Past Questions	View
862	The sum of the voltages over any closed loop is equal to ...	PHY 102 Past Questions	View
863	Which of the following has the least number of valence electrons?	PHY 102 Past Questions	View
864	When the magnetic field is parallel to the plane of the area, the magnetic flux…	PHY 102 Past Questions	View
865	The work done in moving a positive charge from one point to another in an equip…	PHY 102 Past Questions	View
866	Which one of the following laws or principles allows one to determine the direc…	PHY 102 Past Questions	View
867	An electron moves in a magnetic field in a direction inclined at 60° to the pla…	PHY 102 Past Questions	View
868	Faraday's law indicates that a changing magnetic field produces	PHY 102 Past Questions	View
869	The area under the current-time graph is equivalent to	PHY 102 Past Questions	View
870	When a positive charge is moved in an electrostatic field from a point at high …	PHY 102 Past Questions	View
871	Suppose we have a wire with cross-sectional area A, length L, and a charge Q fl…	PHY 102 Past Questions	View
872	Calculate the current in a capacitor having a 2V supply voltage and 3F capacita…	PHY 102 Past Questions	View
873	Two capacitors each of 6F and 3F are connected in series with a potential diffe…	PHY 102 Past Questions	View
874	When three capacitors are joined in series, the total capacitance is?	PHY 102 Past Questions	View
875	What is the kinetic energy in eV of an electron with speed 4×10⁶m/s?	PHY 102 Past Questions	View
876	For any charge configuration, the equipotential surface through a point is ____…	PHY 102 Past Questions	View
877	A 10μF capacitor is charged by a 24V battery through a 400kΩ resistor. After 1s…	PHY 102 Past Questions	View
878	A light bulb has an input power consumption of 50 watts. The bulb was activated…	PHY 102 Past Questions	View
879	Which of the following has no effect on the size of the turning effect (torque)…	PHY 102 Past Questions	View
880	The magnetic field pattern produced by a coil carrying a direct current is simi…	PHY 102 Past Questions	View
881	What bonds are present in a semiconductor?	PHY 102 Past Questions	View
882	How far apart are two charges, one of magnitude 3μC and the other of magnitude …	PHY 102 Past Questions	View
883	What is the daughter nucleus formed when Uranium-238 undergoes alpha decay?	PHY 102 Past Questions	View
884	The rate of change of potential with respect to the distance is called as?	PHY 102 Past Questions	View
885	A block of semiconductor material that is 1mm in transverse width has a magneti…	PHY 102 Past Questions	View
886	In the energy band of an N-type semiconductor doped with Phosphorus, the donor …	PHY 102 Past Questions	View
887	Which of the following expressions equals the magnetic flux?	PHY 102 Past Questions	View
888	Suppose you have a uniform electric field within a parallel plate capacitor wit…	PHY 102 Past Questions	View
889	A resistor, 100Ω, is connected to an a.c. source given as v = 350sin(ωt). If ω …	PHY 102 Past Questions	View
890	Given that the maximum electric field dry air can support is 3×10⁶V/m before it…	PHY 102 Past Questions	View
891	Find the magnitude of two equal charges if they repel each other with a force o…	PHY 102 Past Questions	View
892	One kilowatt hour of electrical energy is the same as	PHY 102 Past Questions	View
893	Which of the following circuit elements stores energy in an electromagnetic fie…	PHY 102 Past Questions	View
894	Arrange the fundamental forces in order of increasing strength.	PHY 102 Past Questions	View
895	For which of the following substances does resistance decrease with increasing …	PHY 102 Past Questions	View
896	Determine the force on an electron of charge 1.6×10⁻¹⁹C which is placed in a un…	PHY 102 Past Questions	View
897	What is the electric field at a point P which is 30cm to the right of a point c…	PHY 102 Past Questions	View
898	Two wires — A and B — with circular cross-sections have identical lengths and a…	PHY 102 Past Questions	View
899	The energy required to charge a 10μF capacitor to 100V is	Last Minute Prep	View
900	A -6μC charge exerts an attractive force of 65N on a second charge that is 5cm …	Last Minute Prep	View

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