ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
PHY102
1 / 50
1. A negative charge ---------------------------negative charge
2 / 50
2. A positive ion passes through an electric and magnetic fields which are mutually perpendicular. The electric field strength is 20.0kV/m while the magnetic flux density is 0.40T. At what speed will the ion pass through undeflected?
3 / 50
3. For capacitors connected in series each has the same ____________.
4 / 50
4. From Gauss’ law which of the following is NOT correct?
5 / 50
5. Field lines are drawn such that the lines per unit cross-section area is proportional to ---------------------------field.
6 / 50
6. Charges of ${+}2$ C and ${-2}$ C are situated at points P and Q respectively which are at a distance apart. A point X is mid-way between P and Q. Which of the following correctly describes the electric field and the electric potential at point X?
7 / 50
7. Which of the following can be used to charge a metal rod that si held in your hand? Rub it with ______
8 / 50
8. According to ohm's law the potential difference is proportional to the ---------------------------
9 / 50
9. A single turn coil of cross-sectional area $7.2cm^2$ is in the a magnetic field of flux desity 0.45T. The field which is perpendicular to the coil, is steadily reduced to 0.0T in 5s. Calculate the induced emf.
10 / 50
10. For how long must a steady current of 2A flow through a copper voltameter to deposit $10^{-3}$kg of copper? Z for coper is 0.000329g/C
11 / 50
11. The study of static charges is called ---------------------------
12 / 50
12. Kirchhof's loop rule is statement of conservation of __________
13 / 50
13. A galvanometer of resistance $120Omega$ a full scale deflection with a current of 0.0005A. How would you convert it to an ammeter that reads a maximum current of 5A?
14 / 50
14. When a charge density depends only on the perpendicular distance from a plane, the charge distribution is said to have--------------------------- symmetry.
15 / 50
15. An alpha particle is a --------------------------- nucleus consisting of 2 protons and 2 neutrons.
16 / 50
16. The magnitude and direction of the earth's field varies with position over the --------------------------- surface.
17 / 50
17. Which of the following is not true of an electrostatic force?
18 / 50
18. 1eV is the energy acquired by an electron in falling freely through --------------------------- 1volt.
19 / 50
19. Calculate the electric field at distance of 320 cm from an infinitely long wire carrying a charge per unit length 8.3 C/m.
20 / 50
20. What are the dimensions of the constant k in Coulomb’s law of electrostatics?
21 / 50
21. Whose law is employed in electrostatics ?
22 / 50
22. The principle that electric forces add vectorially is known as the principle of ---------------------------
23 / 50
23. A voltmeter connected across a 60Hz ac source reads 240V. Write down the expression of the instanteneous voltage as a function of time.
24 / 50
24. A series circuit consisting of an uncharged $42mu$F capacitor and $10 MOmegaega$ resistor is connected to 100V power source. What are the current in the circuit and the charge on the capacitor after one time constant?
25 / 50
25. The variation of the compass from the north-south direction is called the ---------------------------
26 / 50
26. The half-life of a certain radioactive isotope is 32 hours. What fraction of the sample would remain after 16 hours?
27 / 50
27. A charge distribution in which the charge density at any point depends only on the distance of the point from a central point and not on the direction is said to be spherically ---------------------------
28 / 50
28. Three point charges $$2mu{C$}, ${-}4mu{C}$$, and $$6mu{C}$$ are held at the corners of an equilateral triangle with sides equal to 3 cm.What is the resultant force in newtons on the $$2mu{C}$$ charge?
29 / 50
29. The work function of a metal is 3.45eV. Calculate th maximum wavelength of a photon that can eject photo-electrons from the metal
30 / 50
30. An air-cored transformer is assumed to be 100% efficient. The ratio of the secondary turns to the primary turns is 1:20. A 240V ac supply is connected to the primary coil and a $6Omega$ load is connected to the secondary coil. what is the current in the primary coil?
31 / 50
31. A region where an electric charge experiences a force is ---------------------------field
32 / 50
32. In the method of charging by friction, The algebraic sum of the individual charges that is the net charge is ---------------------------.
33 / 50
33. According to Faraday's law, the magnitude of the induced e.m.f is proportional to the rate of change of --------------------------- linking the circuit.
34 / 50
34. The magnetic North is found by suspending a bar magnet freely on the --------------------------- axis.
35 / 50
35. The work done in taking a unit positive charge from one point to another in electric field is --------------------------- of the path chosen between the two points.
36 / 50
36. An electric field of 50 kV/m is perpendicular to a magnetic field 0.25 T. What is the velocity of a charge whose initial of motion is perpendicular to both fields and which passes through the fields undeflected?
37 / 50
37. An RLC circiut contains an ac voltage source with rms value of 50V and has a frequency of 600Hz. Suppose that a resistance R = 20 $Omega$, capacitance C = 10.0 $mu$F and an inductance L = 4.0mH are connected in series to the source. Find the current in the circuit and the voltmeter reading across the inductor.
38 / 50
38. Neutral objects constitute of equal ---------------------------
39 / 50
39. When a dielectric material is inserted between the plates of a capacitor it increases its ---------------------------
40 / 50
40. Find the force on a charge 2C in a field 1Vm<sup>-1</sup>---------------------------
41 / 50
41. The energy stored in a system of charges is known as electrostatic potential ---------------------------
42 / 50
42. A body that absorbs all radiations falling on it is known as ---------------------------.
43 / 50
43. The direction of the electric field is opposite to that of the force if the charge is ---------------------------
44 / 50
44. Find the current in through the $0.3Omega$ in the circuit shown
45 / 50
45. A huge spark due to electric discharge in the atmosphere produces all of the following except ______
46 / 50
46. <p style="text-align:left">Six equal point charges Q = 10nC are located at 2,3, 4,5,6,7m. Find the potential at origin.
47 / 50
47. Electric charge between two bodies can be produced by ---------------------------
48 / 50
48. An RLC circuit is used to tune a radio set to receive NOUN RADIO broadcasting at 105.9MHz in the FM band. The resistance and the inductance of the circuit of the radio set are $12Omega$ and 1.4$mu$H respectively. What capacitance should the circuit have?
49 / 50
49. A rectangular coil of dimensions 20 cm by 15 cm lies with its plane parallel to a magnetic field of $ 0.5 W/$m^{2}$. The coil, carrying a current of 10 A experiences a torque of 4.5 Nm in the field. How many loops has the coil?
50 / 50
50. Kirchhof's junction rule is statement of conservation of -----------
Restart quiz
Rate this quiz
