Electric Circuits The resistance of a conductor of diameter d and length l is R Ω. If the diameter of the conductor is halved and its length is doubled, the resistance will be 8R Ω R Ω 4R Ω 2R Ω 8R Ω R Ω 4R Ω 2R Ω ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance R / n2. n2 / R. nR . n2R. R / n2. n2 / R. nR . n2R. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits How many 200W / 220V bulbs connected in series across 220V supply will consume 100W? Not possible. 4. 2. 1. Not possible. 4. 2. 1. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three resistances have the following ratings 150 Ω at 5 %, 100 Ω at 5 % and 200 Ω at 5 % respectively. The percentage error when all the three are connected in series will be + 8 %. + 5 %. + 6 %. + 7 %. + 8 %. + 5 %. + 6 %. + 7 %. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits By which of the following elements transients will not occur? L All of these C R L All of these C R ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A circuit contains two unequal resistor in parallel currents in both are same. voltage drops across both are same. voltage drops are according to their resistive value. heat losses in both are same. currents in both are same. voltage drops across both are same. voltage drops are according to their resistive value. heat losses in both are same. ANSWER DOWNLOAD EXAMIANS APP
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