Current Electricity If the efficiency of a machine is to be high, what should be low? Losses True component of power kWh consumed Input power Losses True component of power kWh consumed Input power 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? 100 W lamp will glow brighter 40 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will fuse 100 W lamp will glow brighter 40 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will fuse ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators 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
Current Electricity For testing appliances, the wattage of test lamp should be Any value Very low Low High Any value Very low Low High ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Specific resistance of a substance is measured in m/Ω Ω/m None of the listed here Ω-m m/Ω Ω/m None of the listed here Ω-m ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If an electric current is passed through a nerve, the man Becomes insensitive to pain Is excited Begins to weep Begins to laugh Becomes insensitive to pain Is excited Begins to weep Begins to laugh ANSWER DOWNLOAD EXAMIANS APP
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