Objective Questions

Questions (1820)

#	Question	Topic	Actions
101	When the speed at which a conductor is moved through a magnetic field is increa…	PHY 102 Past Questions	View
102	uniform electric field of 4.50 kN/C passes through a rectangular surface of are…	PHY 102 Past Questions	View
103	Answer saved Which of the following statements is TRUE?	PHY 102 Past Questions	View
104	Answer saved Which, among the following quantities, is not affected by the magn…	PHY 102 Past Questions	View
105	Answer saved Four wires meet at a junction. The first carries 4 A into the junc…	PHY 102 Past Questions	View
106	Answer saved A capacitor C 'has a charge Q'. The actual charges on its plates a…	PHY 102 Past Questions	View
107	Answer saved E.M.F for a coil depends upon	PHY 102 Past Questions	View
108	What unit is used for inductance?	PHY 102 Past Questions	View
109	If the resistance of a wire is r Ohm, and the wire is stretched to double its l…	PHY 102 Past Questions	View
110	F = BIL can only be used if magnetic field and electric current are	PHY 102 Past Questions	View
111	An a.c circuit has a peak voltage of 100V across a 50Ω resistor. What are the r…	PHY 102 Past Questions	View
112	small object carrying a charge of 5×10⁻⁹ C experiences a downward force of 20×1…	PHY 102 Past Questions	View
113	uniform magnetic field will cause a charge to move in a circle if the charge is…	PHY 102 Past Questions	View
114	When DC voltage is applied to a capacitor, it	PHY 102 Past Questions	View
115	If the distance between two closely spaced parallel plates is halved, the elect…	PHY 102 Past Questions	View
116	240V a.c source across pure 1.0H inductor, frequency 60 Hz. Current?	PHY 102 Past Questions	View
117	Which of the following has the least number of valence electrons?	PHY 102 Past Questions	View
118	transformer: primary 200 turns, secondary 600 turns, primary current 12 A. Seco…	PHY 102 Past Questions	View
119	Work done in charging a capacitor is	PHY 102 Past Questions	View
120	Two identical capacitors C in parallel, then in series with third C. Equivalent…	PHY 102 Past Questions	View
121	Long wire current north, B field vertically down. Force direction?	PHY 102 Past Questions	View
122	E.M.F can be induced by	PHY 102 Past Questions	View
123	Electric field of uniformly charged hollow metallic sphere is greatest at:	PHY 102 Past Questions	View
124	capacitor 22µF, resistor 200Ω, series across 12V 50Hz. Impedance?	PHY 102 Past Questions	View
125	KCL deals with conservation of?	PHY 102 Past Questions	View
126	Electric flux through closed surface depends on	PHY 102 Past Questions	View
127	For ohmic resistor, resistance is proportionality constant for	PHY 102 Past Questions	View
128	Constant ke in Coulomb's law is dimensionally	PHY 102 Past Questions	View
129	Used for measuring potential difference:	PHY 102 Past Questions	View
130	I = 15 sin ωt. RMS current?	PHY 102 Past Questions	View
131	v = 290 sin ωt, ω=1256 rad/s. RMS and instantaneous at t=0.5s, period?	PHY 102 Past Questions	View
132	Voltage=4V, charge=16C. Capacitance?	PHY 102 Past Questions	View
133	Distance between two point charges doubled, force decreases by	PHY 102 Past Questions	View
134	When capacitors are connected in series, the equivalent capacitance is ……… each…	PHY 102 Past Questions	View
135	Which of following circuit element stores energy in electromagnetic field?	PHY 102 Past Questions	View
136	A 2µF capacitor is charged to 50V and then discharged through a 1 MΩ resistor. …	PHY 102 Past Questions	View
137	Which of the following is true of the capacitance C of a parallel plate capacit…	PHY 102 Past Questions	View
138	Find the maximum torque on a 100-turn square loop of wire of 10.0 cm on a side …	PHY 102 Past Questions	View
139	Which of the following is the correct relationship between PEAK value and R.M.S…	PHY 102 Past Questions	View
140	Find the electric field intensity at a distance of 20 cm from a charge of 2 nC.	PHY 102 Past Questions	View
141	Which is/are correct about the acceleration experienced by a charged particle i…	PHY 102 Past Questions	View
142	Strength of magnetic field is known as	PHY 102 Past Questions	View
143	The change in potential energy of a unit charge between two points in an electr…	PHY 102 Past Questions	View
144	An electron is travelling at right angles to a uniform magnetic field of flux d…	PHY 102 Past Questions	View
145	The rate of change of potential with respect to distance is called as?	PHY 102 Past Questions	View
146	Which of the following is not the same as watt?	PHY 102 Past Questions	View
147	Calculate the capacitance of two plates of area 4 cm² separated by 1 mm.	PHY 102 Past Questions	View
148	Electric field is steepest in the direction in which the potential	PHY 102 Past Questions	View
149	Direction of rotation of motor is determined by	PHY 102 Past Questions	View
150	step-down transformer changes	PHY 102 Past Questions	View
151	thin uncharged conducting spherical shell has a charge q carefully placed at it…	PHY 102 Past Questions	View
152	The law which states 'an induced e.m.f. always gives rise to a current whose ma…	PHY 102 Past Questions	View
153	Answer saved A dielectric K = 2 is inserted between the plates of a 20µF capaci…	PHY 102 Past Questions	View
154	metal ball of 10 kg with 5 C charge moves perpendicular to magnetic field of 5 …	PHY 102 Past Questions	View
155	The power dissipated by a 72 Ω resistor connected to sinusoidal AC source is 24…	PHY 102 Past Questions	View
156	By accelerating magnet inside coil, current in it	PHY 102 Past Questions	View
157	The equation of a current is i = I_m sin(2ωt). Frequency in Hz?	PHY 102 Past Questions	View
158	Find electric field at 0.2 m from 20 mC charge. Force on 10 mC charge at that p…	PHY 102 Past Questions	View
159	The current is zero in a conductor when no potential difference is applied beca…	PHY 102 Past Questions	View
160	Electric field strength related to Hall voltage is given by	PHY 102 Past Questions	View
161	Whenever there is force on magnetic pole, there exists	PHY 102 Past Questions	View
162	Which of the following is the correct unit of Coulomb’s constant?	PHY 102 Past Questions	View
163	20 kΩ resistor in series with 40 kΩ. What R in parallel with equivalent gives 2…	PHY 102 Past Questions	View
164	Magnitude of electric field where force on electron equals its weight? m_e = 9.…	PHY 102 Past Questions	View
165	E.M.F for a coil depends upon	PHY 102 Past Questions	View
166	Faraday’s law indicates that a changing magnetic field produces	PHY 102 Past Questions	View
167	The rate at which electrical energy is used may be measured in:	PHY 102 Past Questions	View
168	Capacitor is a device to?	PHY 102 Past Questions	View
169	Determine the force on an electron of charge 1.6 × 10⁻¹⁹ C placed in a uniform …	PHY 102 Past Questions	View
170	Transformer core losses include:	PHY 102 Past Questions	View
171	In case the charges are similar the force is of?	PHY 102 Past Questions	View
172	If the forces F between two charged particles is measured for various distances…	PHY 102 Past Questions	View
173	Which one of the following parameters is NOT used to determine magnetic force o…	PHY 102 Past Questions	View
174	Electric motor input power 50 W, activated for 60 s, produces work 2970 J. Effi…	PHY 102 Past Questions	View
175	Three capacitors each of 3 F are connected in series. Equivalent capacitance?	PHY 102 Past Questions	View
176	Combination of three equal resistances in series is equivalent to 90 W. Equival…	PHY 102 Past Questions	View
177	6.0×10⁻⁶ C charge located 4.0 m from –3.0×10⁻⁶ C charge. Electric potential hal…	PHY 102 Past Questions	View
178	What must the charge (sign and magnitude) of a particle of mass 5 g be for it t…	PHY 102 Past Questions	View
179	Select the option that best describes a dielectric.	PHY 102 Past Questions	View
180	Parallel plate capacitor has capacitance C. Area doubled, distance halved. New …	PHY 102 Past Questions	View
181	'Sum of currents into a junction equals sum out' is consequence of:	PHY 102 Past Questions	View
182	Three resistors 2Ω, 4Ω, 5Ω in parallel across 20 V. Total current?	PHY 102 Past Questions	View
183	Force due to magnetic field and velocity is	PHY 102 Past Questions	View
184	Inductor connected to 24 V, 50 Hz AC, current 0.5 A. Inductance?	PHY 102 Past Questions	View
185	Efficiency of motor: 240 V, 12 A, lifts 600 kg at 0.15 m/s.	PHY 102 Past Questions	View
186	In an RLC circuit, always used as vector reference?	PHY 102 Past Questions	View
187	Strength of magnetic field known as	PHY 102 Past Questions	View
188	Fuse in lighting circuit is made of	PHY 102 Past Questions	View
189	Capacitance of a capacitor is the ratio	PHY 102 Past Questions	View
190	In Faraday’s law, minus sign is expression of	PHY 102 Past Questions	View
191	For a cell with EMF E, internal resistance r, external R. EMF expression?	PHY 102 Past Questions	View
192	Radius R of circular path for electron mass Me, charge q, velocity V, field B:	PHY 102 Past Questions	View
193	If current is parallel to magnetic field, force is	PHY 102 Past Questions	View
194	battery of emf 4v and internal resistance of 2 Ohms is joined to a resistor of …	PHY 102 Past Questions	View
195	One of the following statements about electrical potential energy is incorrect	PHY 102 Past Questions	View
196	Capacitance 15F and 5F are connected in parallel across a 20v battery. What is …	PHY 102 Past Questions	View
197	The electric field is said to be uniform if it is:	PHY 102 Past Questions	View
198	Total number of magnetic field lines passing through an area is called	PHY 102 Past Questions	View
199	battery with emf 24 V connected to 6 Ω resistor, current 3 A. Terminal p.d.?	PHY 102 Past Questions	View
200	Current measured at secondary of 240V/12V transformer is 2A. Primary current?	PHY 102 Past Questions	View

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