Current Electricity A rheostat differs from potentiometer in the respect that it Offers large number of tapping Has higher wattage rating Has large number of turns Has lower wattage rating Offers large number of tapping Has higher wattage rating Has large number of turns Has lower wattage rating ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals 40 W 20 W 10 W 60 W 40 W 20 W 10 W 60 W ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Inductor Resistor Reactor Capacitor Inductor Resistor Reactor Capacitor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of human body is about 25 ohm 200 ohm 10 ohm 1000 ohm 25 ohm 200 ohm 10 ohm 1000 ohm ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Out of the following which is not a poor conductor? Carbon Copper Cast iron Tungsten Carbon Copper Cast iron Tungsten ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electrical current is due to the flow of Positive charges only Negative charges only Both positive and negative charges Neutral particles only Positive charges only Negative charges only Both positive and negative charges Neutral particles only ANSWER DOWNLOAD EXAMIANS APP
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