Current Electricity Current velocity through a copper conductor is nearly 3 x 108 m/s the same as propagation velocity of electric energy of the order of a few ^.s/m independent of current strength nearly 3 x 108 m/s the same as propagation velocity of electric energy of the order of a few ^.s/m independent of current strength ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Temperature Shape of cross-section Material Cross-sectional area Temperature Shape of cross-section Material Cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Thermistor Semiconductors Varistors Variable resistors Thermistor Semiconductors Varistors Variable resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 800 Ω 600 Ω 1000 Ω 400 Ω 800 Ω 600 Ω 1000 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of 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 Negative charges only ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Varistors are Carbon resistors Resistor with zero temperature co-efficient Non-linear resistors Insulators Carbon resistors Resistor with zero temperature co-efficient Non-linear resistors Insulators ANSWER DOWNLOAD EXAMIANS APP
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