Current Electricity Current velocity through a copper conductor is of the order of a few ^.s/m independent of current strength nearly 3 x 108 m/s the same as propagation velocity of electric energy of the order of a few ^.s/m independent of current strength nearly 3 x 108 m/s the same as propagation velocity of electric energy ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Inductor Capacitor Resistor Reactor Inductor Capacitor Resistor Reactor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually A semiconductor An insulator A conductor None of the listed here A semiconductor An insulator A conductor None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of The unit length of wire A cube of carbon A cube of copper A column of mercury The unit length of wire A cube of carbon A cube of copper A column of mercury ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of a material always decreases if Number of free electrons available becomes more None of these Temperature of material is increased Temperature of material is decreased Number of free electrons available becomes more None of these Temperature of material is increased Temperature of material is decreased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 12.1 Ω 11 Ω 9 Ω 10 Ω 12.1 Ω 11 Ω 9 Ω 10 Ω ANSWER DOWNLOAD EXAMIANS APP
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