var questions = new Array();
var choices = new Array();
var answers = new Array();
var response = new Array();

questions[0] = "1) The current from a cell is a.c and the current from a dynamo is d.c.";
choices[0] = new Array();
choices[0][0] = "True";
choices[0][1] = "False";

answers[0] = choices[0][1];

questions[1] = "2) A battery labelled 12 Amp-hours will last ... hours if it is supplying a current of 4 Amps.";
choices[1] = new Array();
choices[1][0] = "12";
choices[1][1] = "3";
choices[1][2] = "4";

answers[1] = choices[1][1];

questions[2] = "3) A solar cell ...";
choices[2] = new Array();
choices[2][0] = "converts heat energy into light energy.";
choices[2][1] = "produces an alternating current.";
choices[2][2] = "converts light energy into electrical energy.";

answers[2] = choices[2][2];

questions[3] = "4) The bigger the resistance of a component ...";
choices[3] = new Array();
choices[3][0] = "the bigger the current through it";
choices[3][1] = "the bigger it's share of the total p.d";
choices[3][2] = "none of the above ";

answers[3] = choices[3][1];

questions[4] = "5) The size of an induced voltage can be increased by ...";
choices[4] = new Array();
choices[4][0] = "decreasing the strength of the magnet";
choices[4][1] = "increasing the speed of movement";
choices[4][2] = "adding a voltmeter to the circuit";

answers[4] = choices[4][1];

questions[5] = "6) For a given voltage, adding a resistor in series to a circuit ...";
choices[5] = new Array();
choices[5][0] = "increases current";
choices[5][1] = "decreases current";
choices[5][2] = "current stays the same";

answers[5] = choices[5][1];

questions[6] = "7) The voltage across a bulb of resistance 18 ohms when O.5 A flows through it is ...";
choices[6] = new Array();
choices[6][0] = "6 V";
choices[6][1] = "9 V";
choices[6][2] = "4.5 V";

answers[6] = choices[6][1];

questions[7] = "8) 3 resistors of values 1 ohm, 2 ohm and 3 ohm are connected in series. Their combined resistance is ...";
choices[7] = new Array();
choices[7][0] = "6 ohms";
choices[7][1] = "1.8 ohms";
choices[7][2] = "0.5 ohms";

answers[7] = choices[7][0];

questions[8] = "9) The resistance of a thermistor increases if the ...";
choices[8] = new Array();
choices[8][0] = "temperature increases";
choices[8][1] = "light intensity decreases";
choices[8][2] = "temperature decreases";

answers[8] = choices[8][2];

questions[9] = "10) The resistance of a light dependent resistor decreases if the ...";
choices[9] = new Array();
choices[9][0] = "temperature decreases";
choices[9][1] = "light intensity increases";
choices[9][2] = "light intensity decreases";

answers[9] = choices[9][1];

questions[10] = "11) The resistance of a filament bulb increases because the ...";
choices[10] = new Array();
choices[10][0] = "speed of electrons increases";
choices[10][1] = "temperature of the filament increases";
choices[10][2] = "energy lost through the filament is small";

answers[10] = choices[10][1];

questions[11] = "12) Electric current is produced by relative movement of a magnet and a coil of wire in a ...";
choices[11] = new Array();
choices[11][0] = "solar cell";
choices[11][1] = "battery";
choices[11][2] = "dynamo";

answers[11] = choices[11][2];


//response for getting 100%
response[0] = "Excellent, top marks!";
response[1] = "Revise Electric current - cells and batteries";
response[2] = "Revise Electric current - cells and batteries";
response[3] = "Revise Electric current - cells and batteries";
response[4] = "Revise Resistance";
response[5] = "Revise Induced voltage";
response[6] = "Revise Resistance";
response[7] = "Revise Resistance";
response[8] = "Revise Resistance";
response[9] = "Revise Thermistor";
response[10] = "Revise Light dependent resistor";
response[11] = "Revise Current - voltage graph";
response[12] = "Revise Induced voltage";