Current Electricity Voltage dependent resistors are usually made from Graphite Silicon carbide Nichrome Charcoal Graphite Silicon carbide Nichrome Charcoal 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 Decrease Increase Remain constant None of these Decrease Increase Remain constant None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes 1.0 ohm 0.4 ohm 0.8 ohm 0.6 ohm 1.0 ohm 0.4 ohm 0.8 ohm 0.6 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electric filament bulb can be worked from AC supply only All of the listed here DC supply only Battery supply only AC supply only All of the listed here DC supply only Battery supply only 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? 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter Both lamps will glow equally bright 40 W lamp will glow brighter 40 W lamp will fuse 100 W lamp will glow brighter Both lamps will glow equally bright ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Constantan wire is used for making starndard resistance because it has Low specific resistance Negligibly small temperature co-efficient of resistance High melting point High specific resistance Low specific resistance Negligibly small temperature co-efficient of resistance High melting point High specific resistance ANSWER DOWNLOAD EXAMIANS APP
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