Objective Questions

Questions (1819)

#	Question	Topic	Actions
1601	When capacitors are connected in series, equivalent capacitance is _____ each i…	Test Compilation PHY 102 8	View
1602	A sinusoidal voltage is applied to a series RLC circuit with L=10.0 mH, C=100 n…	Test Compilation PHY 102 8	View
1603	Induced emf in a straight conductor of length L moving with velocity V perpendi…	Test Compilation PHY 102 8	View
1604	A certain resistor dissipates 0.5 W when connected to 3 V. When connected to 1 …	Test Compilation PHY 102 8	View
1605	Pulse of sound produced at bottom of boat, reflected from sea bed 1000 m below,…	Test Compilation PHY 102 8	View
1606	When three capacitors are joined in series, total capacitance is	Test Compilation PHY 102 8	View
1607	The force on a charged particle depends on: I. charge on body; II. strength of …	Test Compilation PHY 102 8	View
1608	Two wires A and B, same length, same material, circular cross-section. Wire A h…	Test Compilation PHY 102 8	View
1609	The emf of a battery equals its terminal potential difference:	Test Compilation PHY 102 8	View
1610	Which one does NOT change magnetic flux linking conductor?	Test Compilation PHY 102 8	View
1611	The periodic time of a SHO is 2 s. After what time will kinetic energy become 2…	Test Compilation PHY 102 8	View
1612	The flow of charge per unit time defines	Test Compilation PHY 102 8	View
1613	The SI unit of potential difference is?	Test Compilation PHY 102 8	View
1614	Capacitance of parallel plate air capacitor depends on except: (repeat)	Test Compilation PHY 102 8	View
1615	If two capacitors of 10 μF each are connected in parallel, equivalent capacitan…	Test Compilation PHY 102 8	View
1616	One Joule per coulomb is called:	Test Compilation PHY 102 8	View
1617	Which is correct about Coulomb’s law? I. bodies small compared to distance; II.…	Test Compilation PHY 102 8	View
1618	To obtain high capacitance, permittivity of dielectric should be	Test Compilation PHY 102 8	View
1619	The main source of internal resistance of a cell is	Test Compilation PHY 102 8	View
1620	A potentiometer is a device used to	Test Compilation PHY 102 8	View
1621	Lenz’s law indicates that induced currents form to oppose	Test Compilation PHY 102 8	View
1622	For an ohmic resistor, resistance is proportionality constant for	Test Compilation PHY 102 8	View
1623	Two farad and four farad capacitors in series. Equivalent capacitance?	Test Compilation PHY 102 8	View
1624	Two capacitors of 3 μF in parallel across 15 V. Charge stored by each?	Test Compilation PHY 102 8	View
1625	If two charges are similar, Coulomb’s law implies force is: I. attractive; II. …	Test Compilation PHY 102 8	View
1626	Which is NOT correct about acceleration of charged particle in uniform E field?	Test Compilation PHY 102 8	View
1627	Which is NOT a property of electric lines of force?	Test Compilation PHY 102 8	View
1628	Radioactive source half-life 1 minute. Counting rate 2000 counts/s at t=0. Deca…	Test Compilation PHY 102 8	View
1629	Which statement is NOT correct about photoelectric emission?	Test Compilation PHY 102 8	View
1630	Hydrogen has three isotopes. Which statement is correct?	Test Compilation PHY 102 8	View
1631	Force per meter on two wires carrying 1 A, 1 m apart is	Test Compilation PHY 102 8	View
1632	In a circuit with emf, resistor, inductor, magnetic potential energy is stored	Test Compilation PHY 102 8	View
1633	Surface charge density on sphere radius 1 cm is 796 μC/m². Total charge?	Test Compilation PHY 102 8	View
1634	How far apart are two charges 3 C and 5 C if force is 20 N?	Test Compilation PHY 102 8	View
1635	Weakest force in nature is	Test Compilation PHY 102 8	View
1636	The dot product of E and vector area A of a surface is called	Test Compilation PHY 102 8	View
1637	Total potential difference across three cells becomes maximum when	Test Compilation PHY 102 8	View
1638	Transformer: primary 500 turns, secondary 2000 turns, output 1000 V. Input volt…	Test Compilation PHY 102 8	View
1639	When current in a coil is doubled and number of turns halved, magnetic field at…	Test Compilation PHY 102 9	View
1640	An inductor of inductance 4.0 mH has resistance 15 Ω. Impedance when inductive …	Test Compilation PHY 102 9	View
1641	To protect meter from stray magnetic fields,	Test Compilation PHY 102 9	View
1642	What area of plates gives 1 F, separation 1 mm, vacuum?	Test Compilation PHY 102 9	View
1643	EMF can be induced in a coil if	Test Compilation PHY 102 9	View
1644	Which statement about a capacitor is incorrect?	Test Compilation PHY 102 9	View
1645	SI unit for magnetic flux is	Test Compilation PHY 102 9	View
1646	One electron volt is	Test Compilation PHY 102 9	View
1647	The effective capacitance of a capacitor is reduced when capacitors are connect…	Test Compilation PHY 102 18	View
1648	The plates of a parallel plate air capacitor are charged to 100 V. A 2mm plate …	Test Compilation PHY 102 18	View
1649	What is the correct SI unit of electric flux, φ?	Test Compilation PHY 102 18	View
1650	An inductor of inductance 4.0mH has a resistance of 15Ω. What is its impedance …	Test Compilation PHY 102 18	View
1651	Three charges Q1 = 6.0 mC, Q2 = -6.0 mC and Q3 = 4.0 mC are located at -0.6i, 0…	Test Compilation PHY 102 18	View
1652	Lenz' law states that the direction of the induced emf and hence current	Test Compilation PHY 102 18	View
1653	A parallel plate air capacitor is made of 0.2 m square tin plates and 1 cm apar…	Test Compilation PHY 102 18	View
1654	Which one of the following quantities is correctly matched to its unit?	Test Compilation PHY 102 18	View
1655	An inductor connected to an a.c. source 24V, 50Hz. If the inductor causes a cur…	Test Compilation PHY 102 18	View
1656	Which is/are correct about the direction of electric field E at a point P? i. r…	Test Compilation PHY 102 18	View
1657	Why is electrical energy usually transmitted at high voltage?	Test Compilation PHY 102 18	View
1658	When a pentavalent impurity is added to a pure semiconductor, it becomes	Test Compilation PHY 102 18	View
1659	A battery of emf 6V and internal resistance 3Ω is joined to a resistor of 10Ω. …	Test Compilation PHY 102 18	View
1660	When capacitors are connected in parallel, what happens to the effective plate …	Test Compilation PHY 102 18	View
1661	A parallel plate air capacitor with no dielectric is connected to a constant vo…	Test Compilation PHY 102 18	View
1662	When capacitors are connected in series, ........ remains the same.	Test Compilation PHY 102 18	View
1663	Three resistors (2Ω, 4Ω, 5Ω) are connected in parallel with a potential differe…	Test Compilation PHY 102 18	View
1664	Two capacitors of 3μF are joined in parallel across a battery of 15 volts. The …	Test Compilation PHY 102 18	View
1665	Which of the following is/are correct about insulator and semiconductor? (i) In…	Test Compilation PHY 102 18	View
1666	If a parallel plate capacitor of plate area 2m² and plate separation 1m stores …	Test Compilation PHY 102 18	View
1667	Which of the following is/are correct about a charge q moving with velocity v i…	Test Compilation PHY 102 18	View
1668	Which of the following gives the magnetic force (F) on a charge (q) moving in a…	Test Compilation PHY 102 18	View
1669	The equation of alternating current is i = 42.4sin(628t). Then the average valu…	Test Compilation PHY 102 18	View
1670	The resonant frequency of a circuit is 1000kHz. If each of the capacitance and …	Test Compilation PHY 102 18	View
1671	An inductor of 2.5H is connected across a 120V, 60Hz supply. Calculate the curr…	Test Compilation PHY 102 18	View
1672	According to the equation r = (mv)/(Be), faster moving particles	Test Compilation PHY 102 18	View
1673	A negative charge in an electric field experiences a force accelerating it due …	Test Compilation PHY 102 18	View
1674	A sinusoidal voltage V(t) = 200sin(ωt) is applied to a series RLC circuit with …	Test Compilation PHY 102 18	View
1675	Calculate the kinetic energy of an electron moving in a magnetic field of 1.2T …	Test Compilation PHY 102 18	View
1676	________ is used for measuring potential difference.	Test Compilation PHY 102 18	View
1677	A point charge, -30μC, is placed at the origin of the coordinates. Find the ele…	Test Compilation PHY 102 18	View
1678	An inductor, L = 1H, in series with a resistor, R = 150Ω, are connected to an a…	Test Compilation PHY 102 18	View
1679	Find the potential difference required to give a helium nucleus (q = 3.2×10⁻¹⁹C…	Test Compilation PHY 102 18	View
1680	A positive charge moving with a constant velocity v enters a region of a unifor…	Test Compilation PHY 102 18	View
1681	The sum of the voltages over any closed loop is equal to ...	Test Compilation PHY 102 18	View
1682	Which of the following has the least number of valence electrons?	Test Compilation PHY 102 18	View
1683	When the magnetic field is parallel to the plane of the area, the magnetic flux…	Test Compilation PHY 102 18	View
1684	The work done in moving a positive charge from one point to another in an equip…	Test Compilation PHY 102 18	View
1685	Which one of the following laws or principles allows one to determine the direc…	Test Compilation PHY 102 18	View
1686	An electron moves in a magnetic field in a direction inclined at 60° to the pla…	Test Compilation PHY 102 18	View
1687	A semiconductor has ________ temperature coefficient of resistance.	Test Compilation PHY 102 18	View
1688	Faraday's law indicates that a changing magnetic field produces	Test Compilation PHY 102 18	View
1689	The area under the current-time graph is equivalent to	Test Compilation PHY 102 18	View
1690	When a positive charge is moved in an electrostatic field from a point at high …	Test Compilation PHY 102 18	View
1691	Two capacitors each of 6F and 3F are connected in series with a potential diffe…	Test Compilation PHY 102 18	View
1692	When three capacitors are joined in series, the total capacitance is?	Test Compilation PHY 102 18	View
1693	What is the kinetic energy in eV of an electron with speed 4×10⁶m/s?	Test Compilation PHY 102 18	View
1694	For any charge configuration, the equipotential surface through a point is ____…	Test Compilation PHY 102 18	View
1695	A 10μF capacitor is charged by a 24V battery through a 400kΩ resistor. After 1s…	Test Compilation PHY 102 18	View
1696	A light bulb has an input power consumption of 50 watts. The bulb was activated…	Test Compilation PHY 102 18	View
1697	Which of the following has no effect on the size of the turning effect (torque)…	Test Compilation PHY 102 18	View
1698	The magnetic field pattern produced by a coil carrying a direct current is simi…	Test Compilation PHY 102 18	View
1699	What bonds are present in a semiconductor?	Test Compilation PHY 102 18	View
1700	How far apart are two charges, one of magnitude 3μC and the other of magnitude …	Test Compilation PHY 102 18	View

Page 17 of 19

Quick Actions

Practice

Learning Tools

Stats & Progress

Community

Questions (1819)