Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 400 Ω 1000 Ω 600 Ω 800 Ω 400 Ω 1000 Ω 600 Ω 800 Ω 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 Zero About 2 ohms per degree Positive Negative Zero About 2 ohms per degree Positive Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electric filament bulb can be worked from AC supply only Battery supply only All of the listed here DC supply only AC supply only Battery supply only All of the listed here DC supply only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Zero Positive Negative None of the listed here Zero Positive Negative None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In case of liquids, ohm's law is There is no relation between current and p. d Partially obeyed None of the listed here Fully obeyed There is no relation between current and p. d Partially obeyed None of the listed here Fully obeyed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of The unit length of wire A cube of copper A cube of carbon A column of mercury The unit length of wire A cube of copper A cube of carbon A column of mercury ANSWER DOWNLOAD EXAMIANS APP
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