Current Electricity Ohm's law is not applicable to Circuits with low current densities Carbon resistors High voltage circuits Vaccum tubes Circuits with low current densities Carbon resistors High voltage circuits Vaccum tubes ANSWER DOWNLOAD EXAMIANS APP
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 1/9 times 3 times 9 times 1/3 times 1/9 times 3 times 9 times 1/3 times 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 0.2% 0.3% 0.4% None of the listed here 0.2% 0.3% 0.4% None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 4 : 25 5 : 2 2 : 5 25 : 4 4 : 25 5 : 2 2 : 5 25 : 4 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. Reactor Resistor Capacitor Inductor Reactor Resistor Capacitor Inductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of two wires is 25 Ω when connected in series and 6 Ω when joined in parallel. The resistance of each wire is 5 Ω, 10 Ω 10 Ω, 15 Ω 10 Ω, 20 Ω 20 Ω, 30 Ω 5 Ω, 10 Ω 10 Ω, 15 Ω 10 Ω, 20 Ω 20 Ω, 30 Ω ANSWER DOWNLOAD EXAMIANS APP
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