Current Electricity If the number of valence electrons of an atoms is less than 4,the substance is usually An insulator None of the listed here A semiconductor A conductor An insulator None of the listed here A semiconductor A conductor 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 1000 Ω 800 Ω 400 Ω 600 Ω 1000 Ω 800 Ω 400 Ω 600 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a lamp load when more than one lamp are switched on the total resistance of the load Increases None of these Decreases Remains same Increases None of these Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Material Cross-sectional area Temperature Shape of cross-section Material Cross-sectional area Temperature Shape of cross-section ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is 80 V 66 V 33 V 132 V 80 V 66 V 33 V 132 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Semiconductors have _______temperature co-efficient of resistance. Positive None of the listed here Zero Negative Positive None of the listed here Zero Negative ANSWER DOWNLOAD EXAMIANS APP
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