Current Electricity Resistance of a material always decreases if Number of free electrons available becomes more Temperature of material is increased None of these Temperature of material is decreased Number of free electrons available becomes more Temperature of material is increased None of these Temperature of material is decreased ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Magnetic effect Luminous effect Thermal effect Chemical effect Magnetic effect Luminous effect Thermal effect Chemical effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If an electric current is passed through a nerve, the man Is excited Begins to laugh Begins to weep Becomes insensitive to pain Is excited Begins to laugh Begins to weep Becomes insensitive to pain ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is 66 V 33 V 132 V 80 V 66 V 33 V 132 V 80 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Zinc Mercury Copper Lead Zinc Mercury Copper Lead ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Current velocity through a copper conductor is independent of current strength the same as propagation velocity of electric energy nearly 3 x 108 m/s of the order of a few ^.s/m independent of current strength the same as propagation velocity of electric energy nearly 3 x 108 m/s of the order of a few ^.s/m ANSWER DOWNLOAD EXAMIANS APP
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