Current Electricity A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will Decreases Heater will burn out Remains same Increases Decreases Heater will burn out Remains same Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other? 36 Q 64 Q 18 Q 48 Q 36 Q 64 Q 18 Q 48 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Conductivity is the reciprocal of Resistivity Current density Resistance None of the listed here Resistivity Current density Resistance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 0.6 1 1.5 0.5 0.6 1 1.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All of the following are equivalent to watt except Amperes × volts Joules/sec. (Amperes) ohm Amperes/volt Amperes × volts Joules/sec. (Amperes) ohm Amperes/volt ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? Losses Input power kWh consumed True component of power Losses Input power kWh consumed True component of power ANSWER DOWNLOAD EXAMIANS APP
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