Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 600 Ω 800 Ω 400 Ω 1000 Ω 600 Ω 800 Ω 400 Ω 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Semiconductors Varistors Thermistor Variable resistors Semiconductors Varistors Thermistor Variable resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude of current changes with time Magnitude and direction of current remains constant 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 In case of liquids, ohm's law is Partially obeyed There is no relation between current and p. d Fully obeyed None of the listed here Partially obeyed There is no relation between current and p. d Fully obeyed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.3% 0.4% 0.2% None of the listed here 0.3% 0.4% 0.2% None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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