Current Electricity With rise in temperature the resistance of pure metals Decreases Increases First increases and then decreases Remains constant Decreases Increases First increases and then decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct? 100 W lamp will glow brighter 40 W lamp will glow brighter 40 W lamp will fuse Both lamps will glow equally bright 100 W lamp will glow brighter 40 W lamp will glow brighter 40 W lamp will fuse Both lamps will glow equally bright ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A closed switch has a resistance of About 500 ohms Zero About 50 ohms Infinity About 500 ohms Zero About 50 ohms Infinity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. None of the listed here Negative Zero Positive None of the listed here Negative Zero Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electric filament bulb can be worked from Battery supply only AC supply only All of the listed here DC supply only Battery supply only AC supply only All of the listed here DC supply only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Nucleus Electrons Electrons and ions Atoms Nucleus Electrons Electrons and ions Atoms ANSWER DOWNLOAD EXAMIANS APP
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