Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 11 Ω 12.1 Ω 10 Ω 9 Ω 11 Ω 12.1 Ω 10 Ω 9 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Nichrome wire is an alloy of Chromium and vanadium Nickel and chromium Copper and silver Lead and zinc Chromium and vanadium Nickel and chromium Copper and silver Lead and zinc ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Carbon Copper Constantan Silver Carbon Copper Constantan Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Capacitor Reactor Inductor Resistor Capacitor Reactor Inductor Resistor 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? 40 W lamp will fuse 40 W lamp will glow brighter Both lamps will glow equally bright 100 W lamp will glow brighter 40 W lamp will fuse 40 W lamp will glow brighter Both lamps will glow equally bright 100 W lamp will glow brighter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Current velocity through a copper conductor is independent of current strength nearly 3 x 108 m/s the same as propagation velocity of electric energy of the order of a few ^.s/m independent of current strength nearly 3 x 108 m/s the same as propagation velocity of electric energy of the order of a few ^.s/m ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS