Current Electricity Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be 3 times 9 times 1/3 times 1/9 times 3 times 9 times 1/3 times 1/9 times ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct? Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A thermistor has Positive temperature coefficient Negative temperature coefficient Zero temperature coefficient Variable temperature coefficient Positive temperature coefficient Negative temperature coefficient Zero temperature coefficient Variable temperature coefficient ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With rise in temperature the resistance of pure metals First increases and then decreases Remains constant Increases Decreases First increases and then decreases Remains constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Positive Zero None of the listed here Negative Positive Zero None of the listed here Negative ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Nichrome wire is an alloy of Copper and silver Chromium and vanadium Nickel and chromium Lead and zinc Copper and silver Chromium and vanadium Nickel and chromium Lead and zinc ANSWER DOWNLOAD EXAMIANS APP
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