Current Electricity The resistance of a conductor varies inversely as Length Temperature Resistivity Are of cross-section Length Temperature Resistivity Are of cross-section ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Lead Copper Zinc Mercury Lead Copper Zinc Mercury ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The filament of electrical bulb is made of Steel Aluminium Tungsten Nickel Steel Aluminium Tungsten Nickel ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? kWh consumed True component of power Input power Losses kWh consumed True component of power Input power Losses ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Current velocity through a copper conductor is nearly 3 x 108 m/s the same as propagation velocity of electric energy independent of current strength of the order of a few ^.s/m nearly 3 x 108 m/s the same as propagation velocity of electric energy independent of current strength of the order of a few ^.s/m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Three resistance of 10 ohms, 15 ohms, and 30 ohm are connected in parallel. The total resistance of the combination is 5 ohms 55 ohms 15 ohms 10 ohms 5 ohms 55 ohms 15 ohms 10 ohms ANSWER DOWNLOAD EXAMIANS APP
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