71. The phenomena of electromagnetic induction is . . . . . . . .
72. The reciprocal of resistance is called
73. A charge of 2 C passes from one point to the other in a circuit. If the potential difference between the two points is 5V, the amount of work done is
74. When do electrons move for the flow of charges in a conducting metallic wire?
75. A 100 watt electric bulb is used for 10 hours. What will be the cost of electricity consumed, if the consumption cost is Rs. 5 per unit?
76. Which one of the following devices changes low voltage alternating current to high voltage alternating current and vice-versa?
77. The easiest method of maintaining the electric potential difference between the two ends of a conductor is to connect it between the terminals of . . . . . . . . to get a continuous flow of current.
78. Which of the following solutions is not a conductor of electricity?
79. If the resistance of the coil is 750 ohms, how much current will flow from the 220V source to the electric heater coil?
80. The SI unit of . . . . . . . . is ohm?
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