51. Materials exhibiting zero value of resistivity are known as ______ .
52. Disc windings are primarily used in
53. Resistances can be measured with the help of
54. If an inductance is connected in one arm of bridge and resistances in the remaining three arms
55. A sensitive galvanometer produces large deflection for a
56. Alternating current is measured by
57. A universal RLC bridge uses
58. Is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another,
59. are always double layer type.
60. The mcrease in heat dissipation by air blasts is due to increase in
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