SSC JE Electrical / Mock Test Series : 2

1. Battery is a

2. Electric pressure is also called –

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

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

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

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

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

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

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

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

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

12. In any AC circuit always –

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

14. Higher the self-inductance of a coil –

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

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

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

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

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

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

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

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

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

24. Form factor of half wave rectified ac is-

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

26. Ideal voltage source has-

27. Ideal voltage source has-

28. Find the current in the circuit.

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

30. Batteries are generally connected in______

31. KWh is the unit of -    

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

33. Calculate the total current in the circuit

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

35. 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.

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

37. Frequency of Direct Current is

38. Form factor of square wave is-

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

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

41. Insulating material can –

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

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

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

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

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

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

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

49. Hysteresis loss least depends on –

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

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

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

53. Capacitors for power factor correction are rated in -

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

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

56. 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.

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

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

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

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

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

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

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

64. Find the voltage across the 6 ohm resistor

65. Average power taken by a pure capacitor is –

66. An open coil has –

67. 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?

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

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

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

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

72. Calculate the current across the 20 ohm resistor

73. 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 –

74. Calculate the equivalent resistance between A and B

75. In case of D.C –

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

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

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

79. 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?

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

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

82. Calculate the resistance between A and B

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

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

85. Calculate the equivalent resistance between A and B

86. Electrolysis is possible with –

87. Instantaneous power in inductor is proportional to the –

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

89. In a electric circuit MMF is similar to

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

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

92. Capacitive Susceptance is a measure of –

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

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

95. In a pure inductive circuit current is

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

97. Calculate the equivalent resistance between A and B

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

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

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