{"subject":"applied_electricity","questions":[{"q":"A heater rated 140 W is connected to a 140 V supply. The current drawn is","o":["14 A","0.5 A","2 A","1 A"],"a":3,"t":"Power","d":"Medium"},{"q":"A resistor connected to a 110 V supply carries a current of 5 A. Its resistance is","o":["110 Ω","22 Ω","23 Ω","44 Ω"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 45 V supply carries a current of 9 A. Its resistance is","o":["6 Ω","5 Ω","45 Ω","10 Ω"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 360 W is connected to a 60 V supply. The current drawn is","o":["5 A","12 A","6 A","7 A"],"a":2,"t":"Power","d":"Medium"},{"q":"A current of 5 A flows through a 21 Ω resistor. The voltage across it is","o":["210 V","105 V","126 V","26 V"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 108 V supply carries a current of 9 A. Its resistance is","o":["24 Ω","13 Ω","12 Ω","108 Ω"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 2 V supply carries a current of 1 A. Its resistance is","o":["3 Ω","1 Ω","2 Ω","4 Ω"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 11 A flows through a 19 Ω resistor. The voltage across it is","o":["228 V","30 V","209 V","418 V"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 480 W is connected to a 40 V supply. The current drawn is","o":["13 A","4 A","12 A","24 A"],"a":2,"t":"Power","d":"Medium"},{"q":"A current of 3 A flows through a 18 Ω resistor. The voltage across it is","o":["72 V","21 V","54 V","108 V"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 34 V supply carries a current of 2 A. Its resistance is","o":["17 Ω","18 Ω","16 Ω","34 Ω"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 50 W is connected to a 50 V supply. The current drawn is","o":["2 A","0.5 A","1 A","5 A"],"a":2,"t":"Power","d":"Medium"},{"q":"A heater rated 1680 W is connected to a 240 V supply. The current drawn is","o":["8 A","14 A","24 A","7 A"],"a":3,"t":"Power","d":"Medium"},{"q":"A heater rated 220 W is connected to a 220 V supply. The current drawn is","o":["0.5 A","22 A","1 A","2 A"],"a":2,"t":"Power","d":"Medium"},{"q":"A heater rated 1320 W is connected to a 110 V supply. The current drawn is","o":["12 A","11 A","13 A","24 A"],"a":0,"t":"Power","d":"Medium"},{"q":"A heater rated 210 W is connected to a 70 V supply. The current drawn is","o":["4 A","6 A","7 A","3 A"],"a":3,"t":"Power","d":"Medium"},{"q":"A current of 10 A flows through a 5 Ω resistor. The voltage across it is","o":["55 V","100 V","15 V","50 V"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 2160 W is connected to a 180 V supply. The current drawn is","o":["12 A","18 A","24 A","13 A"],"a":0,"t":"Power","d":"Medium"},{"q":"A current of 6 A flows through a 2 Ω resistor. The voltage across it is","o":["14 V","24 V","8 V","12 V"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 1980 W is connected to a 180 V supply. The current drawn is","o":["12 A","18 A","22 A","11 A"],"a":3,"t":"Power","d":"Medium"},{"q":"A resistor connected to a 20 V supply carries a current of 4 A. Its resistance is","o":["20 Ω","10 Ω","6 Ω","5 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 6 A flows through a 16 Ω resistor. The voltage across it is","o":["112 V","96 V","22 V","192 V"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 120 V supply carries a current of 8 A. Its resistance is","o":["30 Ω","120 Ω","15 Ω","16 Ω"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 12 V supply carries a current of 6 A. Its resistance is","o":["4 Ω","3 Ω","12 Ω","2 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 12 A flows through a 7 Ω resistor. The voltage across it is","o":["19 V","84 V","168 V","91 V"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 190 V supply carries a current of 10 A. Its resistance is","o":["20 Ω","190 Ω","38 Ω","19 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 1040 W is connected to a 130 V supply. The current drawn is","o":["16 A","8 A","13 A","9 A"],"a":1,"t":"Power","d":"Medium"},{"q":"A current of 6 A flows through a 3 Ω resistor. The voltage across it is","o":["21 V","9 V","36 V","18 V"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 120 V supply carries a current of 5 A. Its resistance is","o":["25 Ω","120 Ω","48 Ω","24 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 8 A flows through a 22 Ω resistor. The voltage across it is","o":["176 V","198 V","352 V","30 V"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 490 W is connected to a 70 V supply. The current drawn is","o":["7 A","14 A","8 A","6 A"],"a":0,"t":"Power","d":"Medium"},{"q":"A heater rated 990 W is connected to a 90 V supply. The current drawn is","o":["12 A","9 A","11 A","22 A"],"a":2,"t":"Power","d":"Medium"},{"q":"A heater rated 2160 W is connected to a 240 V supply. The current drawn is","o":["9 A","24 A","18 A","10 A"],"a":0,"t":"Power","d":"Medium"},{"q":"A current of 12 A flows through a 4 Ω resistor. The voltage across it is","o":["48 V","96 V","16 V","52 V"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 1700 W is connected to a 170 V supply. The current drawn is","o":["20 A","10 A","11 A","17 A"],"a":1,"t":"Power","d":"Medium"},{"q":"A resistor connected to a 153 V supply carries a current of 9 A. Its resistance is","o":["34 Ω","153 Ω","18 Ω","17 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 184 V supply carries a current of 8 A. Its resistance is","o":["23 Ω","184 Ω","46 Ω","24 Ω"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 171 V supply carries a current of 9 A. Its resistance is","o":["19 Ω","171 Ω","38 Ω","20 Ω"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 360 W is connected to a 180 V supply. The current drawn is","o":["4 A","2 A","3 A","18 A"],"a":1,"t":"Power","d":"Medium"},{"q":"A resistor connected to a 143 V supply carries a current of 11 A. Its resistance is","o":["14 Ω","26 Ω","143 Ω","13 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 10 A flows through a 9 Ω resistor. The voltage across it is","o":["90 V","180 V","99 V","19 V"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 168 V supply carries a current of 7 A. Its resistance is","o":["24 Ω","168 Ω","25 Ω","48 Ω"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 21 V supply carries a current of 3 A. Its resistance is","o":["7 Ω","21 Ω","14 Ω","8 Ω"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 240 W is connected to a 30 V supply. The current drawn is","o":["3 A","8 A","9 A","16 A"],"a":1,"t":"Power","d":"Medium"},{"q":"A current of 2 A flows through a 11 Ω resistor. The voltage across it is","o":["33 V","13 V","44 V","22 V"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 81 V supply carries a current of 9 A. Its resistance is","o":["9 Ω","10 Ω","81 Ω","18 Ω"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 11 A flows through a 21 Ω resistor. The voltage across it is","o":["462 V","32 V","252 V","231 V"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 115 V supply carries a current of 5 A. Its resistance is","o":["46 Ω","23 Ω","24 Ω","115 Ω"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 3 A flows through a 19 Ω resistor. The voltage across it is","o":["76 V","57 V","114 V","22 V"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 36 V supply carries a current of 9 A. Its resistance is","o":["8 Ω","5 Ω","4 Ω","36 Ω"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A resistor connected to a 25 V supply carries a current of 5 A. Its resistance is","o":["25 Ω","5 Ω","10 Ω","6 Ω"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 6 A flows through a 15 Ω resistor. The voltage across it is","o":["105 V","180 V","90 V","21 V"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 8 A flows through a 19 Ω resistor. The voltage across it is","o":["152 V","27 V","171 V","304 V"],"a":0,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 9 A flows through a 21 Ω resistor. The voltage across it is","o":["30 V","189 V","210 V","378 V"],"a":1,"t":"Ohm's Law","d":"Easy"},{"q":"A current of 12 A flows through a 9 Ω resistor. The voltage across it is","o":["21 V","117 V","108 V","216 V"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 500 W is connected to a 50 V supply. The current drawn is","o":["5 A","20 A","11 A","10 A"],"a":3,"t":"Power","d":"Medium"},{"q":"A resistor connected to a 28 V supply carries a current of 4 A. Its resistance is","o":["14 Ω","8 Ω","28 Ω","7 Ω"],"a":3,"t":"Ohm's Law","d":"Easy"},{"q":"A heater rated 90 W is connected to a 30 V supply. The current drawn is","o":["2 A","3 A","4 A","6 A"],"a":1,"t":"Power","d":"Medium"},{"q":"A heater rated 450 W is connected to a 50 V supply. The current drawn is","o":["5 A","18 A","9 A","10 A"],"a":2,"t":"Power","d":"Medium"},{"q":"A resistor connected to a 168 V supply carries a current of 12 A. Its resistance is","o":["15 Ω","28 Ω","14 Ω","168 Ω"],"a":2,"t":"Ohm's Law","d":"Easy"},{"q":"The unit of electric current is the","o":["Volt","Ampere","Watt","Ohm"],"a":1,"t":"Applied Electricity","d":"Medium"},{"q":"The unit of resistance is the","o":["Ampere","Volt","Ohm","Farad"],"a":2,"t":"Applied Electricity","d":"Medium"},{"q":"The unit of electrical power is the","o":["Watt","Joule","Coulomb","Volt"],"a":0,"t":"Applied Electricity","d":"Medium"},{"q":"A device used to measure current is the","o":["Voltmeter","Ammeter","Ohmmeter","Wattmeter"],"a":1,"t":"Applied Electricity","d":"Medium"},{"q":"A device used to measure potential difference is the","o":["Rheostat","Galvanometer","Ammeter","Voltmeter"],"a":3,"t":"Applied Electricity","d":"Medium"},{"q":"A material that allows current to flow easily is a","o":["Dielectric","Conductor","Semiconductor","Insulator"],"a":1,"t":"Applied Electricity","d":"Medium"},{"q":"A safety device that melts when too much current flows is a","o":["Switch","Resistor","Capacitor","Fuse"],"a":3,"t":"Applied Electricity","d":"Medium"},{"q":"The earth wire in a three-pin plug is coloured","o":["Blue","Brown","Green and yellow","Red"],"a":2,"t":"Applied Electricity","d":"Medium"},{"q":"The live wire in a domestic wiring colour code is","o":["Blue","Green","Black only","Brown"],"a":3,"t":"Applied Electricity","d":"Medium"},{"q":"A device that stores electric charge is a","o":["Capacitor","Inductor","Resistor","Fuse"],"a":0,"t":"Applied Electricity","d":"Medium"},{"q":"A transformer works on the principle of","o":["Electromagnetic induction","Thermionic emission","Electrolysis","Photoelectric effect"],"a":0,"t":"Applied Electricity","d":"Medium"},{"q":"A transformer changes the value of","o":["Direct voltage only","Alternating voltage","Frequency","Resistance"],"a":1,"t":"Applied Electricity","d":"Medium"},{"q":"A device that converts AC to DC is a","o":["Generator","Transformer","Rectifier","Inverter"],"a":2,"t":"Applied Electricity","d":"Medium"}]}