[{"question":"Vyberte nepravdiv\u00e9 tvrdenie o tom, ako sa zohrieva vodi\u010d pri prechode elektrick\u00e9ho pr\u00fadu.","answers":["Pomal\u0161ie kmitanie i\u00f3nov v kry\u0161t\u00e1lovej mrie\u017eke sa navonok prejav\u00fd ako zv\u00fd\u0161enie teploty kovu.","Elektr\u00f3ny sa pri n\u00e1raze brzdia.","Pri n\u00e1raze odovzd\u00e1 elektr\u00f3n trochu svojej energie i\u00f3nu v mrie\u017eke.","Elektr\u00f3ny v kovovom vodi\u010di nar\u00e1\u017eaj\u00fa na i\u00f3ny v kry\u0161t\u00e1lovej mrie\u017eke."],"correct":"Pomal\u0161ie kmitanie i\u00f3nov v kry\u0161t\u00e1lovej mrie\u017eke sa navonok prejav\u00fd ako zv\u00fd\u0161enie teploty kovu.","order":"1"},{"question":"Ktor\u00e1 fyzik\u00e1lna veli\u010dina hovor\u00ed o tom, ko\u013eko elektrickej energie spotrebi\u010d spotrebuje za sekundu?","answers":["sila","pr\u00e1ca","pr\u00edkon","v\u00fdkon"],"correct":"pr\u00edkon","order":"2"},{"question":"Ako vypo\u010d\u00edtame v\u00fdkon elektrick\u00e9ho pr\u00fadu?","answers":["U = P . I","U = P \/ I","P = U \/ I","P = U . I"],"correct":"P = U . I","order":"3"},{"question":"Ako vypo\u010d\u00edtame \u00fa\u010dinnos\u0165 spotrebi\u010da?","answers":["v\u00fdkon - pr\u00edkon","pr\u00edkon \/ v\u00fdkon","pr\u00edkon . V\u00fdkon","v\u00fdkon \/ pr\u00edkon"],"correct":"v\u00fdkon \/ pr\u00edkon","order":"4"},{"question":"Vykon\u00e1vame Oerstedov pokus. \u010co sa stane, ke\u010f zapneme elektrick\u00fd pr\u00fad v obvode?","answers":["oce\u013eov\u00e9 piliny sa usporiadaj\u00fa do kru\u017en\u00edc","magnetka sa vych\u00fdli z p\u00f4vodn\u00e9ho severo-ju\u017en\u00e9ho smeru","cievka sa za\u010dne spr\u00e1va\u0165 ako magnetka","cievka sa vych\u00fdli z p\u00f4vodn\u00e9ho severo-ju\u017en\u00e9ho smeru"],"correct":"magnetka sa vych\u00fdli z p\u00f4vodn\u00e9ho severo-ju\u017en\u00e9ho smeru","order":"5"},{"question":"Kde je magnetick\u00e9 pole civky najsilnej\u0161ie?","answers":["na koncoch cievky","okolo cievky","v\u0161ade je rovnak\u00e9","v dutine"],"correct":"v dutine","order":"6"},{"question":"\u010co ur\u010dujeme pravidlom pravej ruky?","answers":["smer pr\u00fadu v cievke","magnetick\u00e9 p\u00f3ly cievky","smer magnetick\u00fdch induk\u010dn\u00fdch \u010diar","elektrick\u00e9 p\u00f3ly cievky"],"correct":"magnetick\u00e9 p\u00f3ly cievky","order":"7"},{"question":"Kedy sa cievka s jadrom stane elektromagnetom?","answers":["ke\u010f konce jadra pripoj\u00edme k bat\u00e9rii","ke\u010f konce vodi\u010da cievky odpoj\u00edme od bat\u00e9rie","ke\u010f konce vodi\u010da cievky pripoj\u00edme k bat\u00e9rii","ke\u010f \u0161pendl\u00edky odpadn\u00fa od jadra"],"correct":"ke\u010f konce vodi\u010da cievky pripoj\u00edme k bat\u00e9rii","order":"8"},{"question":"Pre\u010do sa jadro elektromagnetu stane magnetom?","answers":["lebo jadro je pripojen\u00e9 k bat\u00e9rii","lebo jadro pritiahne \u0161pendl\u00edky","lebo jadro je v magnetickom poli cievky","lebo jadrom prech\u00e1dza elektrick\u00fd pr\u00fad"],"correct":"lebo jadro je v magnetickom poli cievky","order":"9"},{"question":"Pre\u010do je v\u00fdhodnej\u0161ie pou\u017e\u00edva\u0165 elektromagnet ako trval\u00fd magnet.","answers":["lebo elektromagnet sa d\u00e1 vypn\u00fa\u0165 a zapn\u00fa\u0165","lebo trval\u00fd magnet sa d\u00e1 vypn\u00fa\u0165 a zapn\u00fa\u0165","lebo elektromagnet nem\u00f4\u017ee by\u0165 silnej\u0161\u00edm magnetom","lebo trval\u00fd magnet m\u00e1 m\u00e1lo z\u00e1vitov na cievke"],"correct":"lebo elektromagnet sa d\u00e1 vypn\u00fa\u0165 a zapn\u00fa\u0165","order":"10"}]