71. Which medium has the least dielectric strength ?
72. The minimum value of potential gradient in a cable occurs in
73. Dielectric strength ______ with increasing thickness
74. capacitors are mainly used for radio frequency tuning.
75. If a third equal and similar charge is placed between two equal and similar charges, then this third charge will
76. The unit of capacitance is
77. The time constant and R-C circuit may also be defined as the time during which the charging current falls to ______ percent of its initial maximum value,
78. An electrolytic capacitor can be used for
79. A capacitor consists of two
80. A paper capacitor is usually available in the form of
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