Current Electricity A copper wire is stretched so that its length is increased by 0.1 % . The change in its resistance is 0.3% 0.4% None of the listed here 0.2% 0.3% 0.4% None of the listed here 0.2% ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following quantities remain the same in all parts of a series circuit? Voltage Resistance Power Current Voltage Resistance Power Current ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The minimum charge on an ion is 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 Equal to the charge of an electron ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following materials has the least resistivity ? Mercury Zinc Lead Copper Mercury Zinc Lead Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 200 V 150 V 50 V 100 V 200 V 150 V 50 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All of the following are equivalent to watt except Amperes × volts Amperes/volt (Amperes) ohm Joules/sec. Amperes × volts Amperes/volt (Amperes) ohm Joules/sec. ANSWER DOWNLOAD EXAMIANS APP
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