81. With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals
82. The insulation on a current carrying conductor is provided
83. Out of the following which is not a poor conductor?
84. When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will
85. Which of the following statement is true both for a series and a parallel D.C. circuit?
86. Voltage dependent resistors are usually made from
87. The resistance of a copper wire 200 m long is 21 $$\Omega .$$ If its thickness (diameter) is 0.44 mm, its specific resistance is around
88. The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is
89. In a circuit a 33 Ohm resistor carries a current of 2 A. The voltage across the resistor is
90. If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes
Read More Section(Current Electricity)
Each Section contains maximum 100 MCQs question on Current Electricity. To get more questions visit other sections.