Current Electricity Resistance of a material always decreases if 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 Number of free electrons available becomes more ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Shape of cross-section Temperature Cross-sectional area Material Shape of cross-section Temperature Cross-sectional area Material ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Nichrome wire is an alloy of Chromium and vanadium Copper and silver Nickel and chromium Lead and zinc Chromium and vanadium Copper and silver Nickel and chromium Lead and zinc ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 50 V 200 V 150 V 100 V 50 V 200 V 150 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is Positive About 2 ohms per degree Zero Negative Positive About 2 ohms per degree Zero Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In case of liquids, ohm's law is Fully obeyed None of the listed here There is no relation between current and p. d Partially obeyed Fully obeyed None of the listed here There is no relation between current and p. d Partially obeyed ANSWER DOWNLOAD EXAMIANS APP
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