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 1.6 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 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.8 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best material for making connecting wires? Nichrome Copper Manganin Constant Nichrome Copper Manganin Constant ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The maximum current rating for a 10 kΩ, 0.5 W resistor is 14.14 mA 0.707 mA 28.28 mA 7.07 mA 14.14 mA 0.707 mA 28.28 mA 7.07 mA ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The flow of current in solids is due to Electrons Electrons and ions Nucleus Atoms Electrons Electrons and ions Nucleus Atoms ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Negative charges only Both positive and negative charges Neutral particles only Positive charges only Negative charges only Both positive and negative charges Neutral particles only Positive charges only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Copper Carbon Tungsten Cast iron Copper Carbon Tungsten Cast iron ANSWER DOWNLOAD EXAMIANS APP
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