Current Electricity Which of the following materials has the least resistivity ? Mercury Lead Zinc Copper Mercury Lead Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V. Which of the following statement is correct? Both lamps will glow equally bright 40 W lamp will fuse 40 W lamp will glow brighter 100 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will fuse 40 W lamp will glow brighter 100 W lamp will glow brighter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will None of these Increase Remain constant Decrease None of these Increase Remain constant Decrease ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. Negative None of the listed here Zero Positive Negative None of the listed here Zero Positive ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Resistance of 220 V, 100 W lamp will be 48.4 Q 4840 Q 4.84 Q 484 ft 48.4 Q 4840 Q 4.84 Q 484 ft ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All good conductors have high Conductance Resistance Reluctance Thermal conductivity Conductance Resistance Reluctance Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
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