Current Electricity Resistance of a carbon filament lamp _______ as the applied voltage increases. Remains same None of the listed here Increases Decreases Remains same None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Positive charges only Negative charges only Neutral particles only Both positive and negative charges Positive charges only Negative charges only Neutral particles only Both positive and negative charges ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Positive Zero Negative None of the listed here Positive Zero Negative None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The minimum charge on an ion is Equal to the charge of an electron Equal to the charge of the number of electrons in an atom (#) zero Equal to the atomic number of the atom None of these Equal to the charge of an electron Equal to the charge of the number of electrons in an atom (#) zero Equal to the atomic number of the atom None of these 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 Resistor Inductor Capacitor Reactor Resistor Inductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a copper wire 200 m long is 21 ω. If its thickness (diameter) is 0.44 mm, its specific resistance is around 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m 1.6 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
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