Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 0.4 ohm 1.0 ohm 0.8 ohm 0.6 ohm 0.4 ohm 1.0 ohm 0.8 ohm 0.6 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two lamps 100 W and 40 W are connected in series across 230 V (alternating). Which of the following statement is correct? 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 100 W lamp will glow brighter 40 W lamp will glow brighter Both lamps will glow equally bright ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Copper Carbon Cast iron Tungsten Copper Carbon Cast iron Tungsten ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is 5 kWh 2 kWh 6 kWh 3.2 kWh 5 kWh 2 kWh 6 kWh 3.2 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A wire having very high value of conductance is said to be Insulator None of the listed here Moderately good conductor Very good conductor Insulator None of the listed here Moderately good conductor Very good conductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which of the following is the best material for making connecting wires? Constant Manganin Copper Nichrome Constant Manganin Copper Nichrome ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS