Current Electricity Which of the following materials has the least resistivity ? Lead Zinc Mercury Copper Lead Zinc Mercury Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Specific resistance of a substance is measured in m/Ω None of the listed here Ω-m Ω/m m/Ω None of the listed here Ω-m Ω/m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A field of force can exist only between Two molecules Two atoms Two metal particles Two ions Two molecules Two atoms Two metal particles Two ions ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Voltage dependent resistors are usually made from Nichrome Charcoal Silicon carbide Graphite Nichrome Charcoal Silicon carbide Graphite ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following statement is true both for a series and a parallel D.C. circuit? Elements have individual currents Currents are additive Voltages are additive Power are additive Elements have individual currents Currents are additive Voltages are additive Power are additive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will Remain constant Decrease Increase None of these Remain constant Decrease Increase None of these ANSWER DOWNLOAD EXAMIANS APP
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