71. Which method can be used for absolute measurement of resistances?
72. A field of force can exist only between
73. Conductance is reciprocal of
74. In an electric kettle water boils in 10 m minutes. It is required to boil the boiler in 15 minutes, using same supply mains
75. A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is
76. Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be
77. When current flows through heater coil it glows but supply wiring does not glow because
78. Which of the following quantities remain the same in all parts of a series circuit?
79. A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is
80. International ohm is defined in terms of the resistance of
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