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 1.6 x 10-8 ω-m 1.8 x 10-8 ω-m 1.2 x 10-8 ω-m 1.4 x 10-8 ω-m 1.6 x 10-8 ω-m 1.8 x 10-8 ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The maximum current rating for a 10 kΩ, 0.5 W resistor is 7.07 mA 0.707 mA 28.28 mA 14.14 mA 7.07 mA 0.707 mA 28.28 mA 14.14 mA ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Capacitance Resistance Inductance Impedance Capacitance Resistance Inductance Impedance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other? 18 Q 36 Q 64 Q 48 Q 18 Q 36 Q 64 Q 48 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity It becomes more difficult to remove Third electron from the orbit Second electron from the orbit Any electron from the orbit First electron from the orbit Third electron from the orbit Second electron from the orbit Any electron from the orbit First electron from the orbit ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 0.005 kWh 5 kWh 0.05 kWh 5 kWh 0.005 kWh 5 kWh 0.05 kWh 5 kWh ANSWER DOWNLOAD EXAMIANS APP
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