Current Electricity In the case of direct current Magnitude and direction of current changes with time Magnitude and direction of current remains constant Magnitude of current changes with time Magnitude of current remains constant Magnitude and direction of current changes with time Magnitude and direction of current remains constant Magnitude of current changes with time Magnitude of current remains constant 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 When current flows through heater coil it glows but supply wiring does not glow because Resistance of heater coil is more than the supply wires Current through supply line flows at slower speed Supply wiring is covered with insulation layer Supply wires are made of superior material Resistance of heater coil is more than the supply wires Current through supply line flows at slower speed Supply wiring is covered with insulation layer Supply wires are made of superior material ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When one lag of parallel circuit is opened out the total current will Become zero Decreases None of the listed here Increases Become zero Decreases None of the listed here Increases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All of the following are equivalent to watt except Amperes/volt Joules/sec. (Amperes) ohm Amperes × volts Amperes/volt Joules/sec. (Amperes) ohm Amperes × volts ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a straight conductor is independent of Temperature Material Cross-sectional area Shape of cross-section Temperature Material Cross-sectional area Shape of cross-section ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS