SSC JE Electrical / Mock Test Series : 2

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

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

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

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

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

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

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

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

9. In case of D.C –

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

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

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

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

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

15. Calculate the equivalent resistance between A and B

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

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

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

19. An open coil has –

20. Electrolysis is possible with –

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

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

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

24. In any AC circuit always –

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

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

27. 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?

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

29. Instantaneous power in inductor is proportional to the –

30. Ideal voltage source has-

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

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

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

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

35. Battery is a

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

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

38. Calculate the total current in the circuit

39. Form factor of square wave is-

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

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

42. Calculate the resistance between A and B

43. 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 –

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

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

46. Calculate the equivalent resistance between A and B

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

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

49. Electric pressure is also called –

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

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

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

53. KWh is the unit of -    

54. In a electric circuit MMF is similar to

55. 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.

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

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

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

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

60. Average power taken by a pure capacitor is –

61. Capacitive Susceptance is a measure of –

62. Capacitors for power factor correction are rated in -

63. Find the current in the circuit.

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

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

66. 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.

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

68. In a pure inductive circuit current is

69. Ideal voltage source has-

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

71. Insulating material can –

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

73. Calculate the equivalent resistance between A and B

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

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

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

77. Calculate the current across the 20 ohm resistor

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

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

80. 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?

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

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

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

84. Frequency of Direct Current is

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

86. Batteries are generally connected in______

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

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

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

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

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

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

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

94. Form factor of half wave rectified ac is-

95. Find the voltage across the 6 ohm resistor

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

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

98. Hysteresis loss least depends on –

99. Higher the self-inductance of a coil –

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