SSC JE Electrical / Mock Test Series : 2

1. An Inductor works as a ___________ circuit for DC supply.

2. How many degrees are there in π/3 rad?

3. Calculate the equivalent resistance between A and B

4. Ideal voltage source has-

5. If a capacitor of capacitance 9.2F has a voltage of 22.5V across it. Calculate the energy of the capacitor.

6. In a circuit containing R, L and C, power loss can take place in –

7. In a magnetic material hysteresis loss takes place primarily due to –

8. If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is –

9. For a sinusoidal AC voltage, amplitude factor is –

10. M.M.F in a magnetic circuit is corresponding to ……… in an electric circuit-

11. In a capacitor, the electrical energy is stored in –

12. If the rms voltage drop across a 15 kΩ resistor is 16 V, the peak current through the resistor is

13. If current in a conductor increases then according to Lenz's law self-induced voltage will –

14. In a R-L-C circuit, power loss takes place is –

15. If a capacitor is connected with DC supply, it will act as –

16. Insulating material can –

17. In a series circuit, which of the parameters remain constant across all circuit elements such as resistor, capacitor and inductor etc?

18. If there are two bulbs connected in series and one blows out, what happens to the other bulb?

19. If the current through x ohm resistance in the circuit is 5A, find the value of x

20. It is preferable to connect bulbs in series or in parallel?

21. From the following when capacitive reactance will be more?

22. Average value can be defined based on which of the following? –

23. Direction of DC motor can be found out by-

24. In series R-L circuit power factor can be defined as - 

25. If the rms current through a 4.7 kΩ resistor is 4 mA, the peak voltage drop across the resistor is

26. If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?

27. In series R-L circuit power factor can be defined as –

28. Calculate the value of stored energy in an inductor if the value of inductance is 20 H and 4 A of current flows through it.

29. Calculate the ratio of the resistivity of 2 wires having the same length and same resistance with area of cross section 2m² and 5m² respectively.

30. In series R-L circuit power factor can be defined as –

31. In an AC circuit a low value of KVAR compared with KW indicates –

32. Capacitors for power factor correction are rated in -

33. In which device is the principle of statically induced E.M.F used?

34. In a electric circuit MMF is similar to

35. In a series R-C circuit, the applied voltage –

36. Form factor of half wave rectified ac is-

37. Color code for 1 ohm +-10% resistor is

38. Electric field & magnetic field are interrelated and are known as –

39. For a sinusoidal AC voltage, amplitude factor is –

40. If the inductive reactance of a coil is 6 ohm and internal resistance is 8 ohm, then the impedance will be –

41. In case of D.C –

42. If the current in a coil having a constant inductance of L henrys grows at a uniform rate, what is the value of the average current?

43. In a _________ circuit, the total resistance is greater than the largest resistance in the circuit.

44. Calculate the equivalent resistance between A and B

45. Form factor of square wave is-

46. In any AC circuit always –

47. Electrolysis is possible with –

48. Batteries are generally connected in______

49. An alternating voltage is given by, V = 10 sin 2πt. The frequency of the AC signal is –

50. Capacitive Susceptance is a measure of –

51. Find the current in the circuit.

52. For a sinusoidal AC voltage, peak factor or amplitude fator or crest factor is –

53. In a R-L-C circuit, power loss takes place is – 

54. In a ____________ circuit, the total resistance is smaller than the smallest resistance in the circuit

55. An open coil has –

56. In series R-L circuit power factor can be defined as –

57. Frequency of Direct Current is

58. Battery is a

59. Calculate the value of energy stored in an inductor if the value of inductance is 10H and 2 A of current flows through it. – 

60. Calculate the emf induced in an inductor if the inductance is 10H and the current is 2 A in 4 s.

61. If the length of a wire is doubled and diameter is halved, then the resistance will become –

62. Average power taken by a pure capacitor is –

63. Current & Potential Difference both can be measured using –

64. If a sine wave goes through 10 cycles in 20 μs, the period is

65. If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?

66. Find the voltage across the 6 ohm resistor

67. Calculate the value of energy stored in an inductor if the value of inductance is 10H and 2A of current flows through it.-

68. If energy required to heat up a heater coil is 4 KWh and the energy loss is 20%, then what is the energy input?

69. For a pure inductive circuit, the average demand of power from the source will be –

70. Calculate the current across the 20 ohm resistor

71. Energy stored in a magnetic field is given by –

72. Ideal voltage source has-

73. From heating point of view I_D.C. is equal to –

74. Hysteresis loss least depends on –

75. If a capacitor is connected with DC supply, it will act as –

76. Instantaneous power in inductor is proportional to the –

77. If both the number of turns and the core length of an inductive coil are doubled, then its self-inductance will be –

78. If the length of a wire is doubled and diameter is halved, then the resistance will become _________ of the previous.

79. In a parallel circuit, with a number of resistors, the voltage across each resistor is ________

80. Average value of a sine wave is 0.707 times the peak value

81. If the peak of a sine wave is 13 V, the peak-to-peak value is

82. In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will –

83. Induced potential difference due to motion of magnet with respect to the coil is known as -

84. Calculate the resistance between A and B

85. In a R-L-C series circuit, if the capacitive reactance is greater than the inductive reactance, then the power factor will be –

86. Calculate the total current in the circuit

87. In a pure inductive circuit current is

88. Higher the self-inductance of a coil –

89. In an AC circuit (Sine wave) with R and L in series –

90. If the voltage across a capacitor is constant, then current passing through it is ________

91. KWh is the unit of -    

92. In an AC circuit (Sine wave) with R and L in series –

93. In a R-L-C series circuit, if the inductive reactance is greater than the capacitive reactance, then the power factor will be –

94. For a sinusoidal AC voltage, amplitude factor is –

95. An electric incandescent lamp has the power factor of –

96. Calculate the total resistance between the points A and B.

97. For a 55KVA, 11000 Volts/440 Volts, 50Hz single phase transformer, the values of primary and secondary currents are –

98. In a series R-C circuit, the applied voltage –

99. Electric pressure is also called –

100. Calculate the equivalent resistance between A and B