[{"question":"Ktor\u00fd zo vzorcov pre v\u00fdpo\u010det pr\u00e1ce elektrick\u00e9ho po\u013ea je spr\u00e1vny?","answers":["W = U + I*t","W = I*t - U","W = U*I*t","W = I*t\/U"],"correct":"W = U*I*t","order":"1"},{"question":"\u010co je v\u00fdkon spotrebi\u010da?","answers":["jeho pr\u00e1ca","jeho pr\u00edkon","jeho \u00fa\u010dinnos\u0165","jeho odpor"],"correct":"jeho pr\u00edkon","order":"2"},{"question":"Ako vypo\u010d\u00edtame v\u00fdkon spotrebi\u010da?","answers":["P = W*t","P = W + t","P = W - t","P = W\/t"],"correct":"P = W\/t","order":"3"},{"question":"Ako inak vypo\u010d\u00edtame v\u00fdkon spotrebi\u010da?","answers":["P = U + I","P = U - I","P = U\/I","P = U*I"],"correct":"P = U*I","order":"4"},{"question":"V ak\u00fdch jednotk\u00e1ch meriame v\u00fdkon spotrebi\u010da?","answers":["joule","watt","newton","pascal"],"correct":"watt","order":"5"},{"question":"Ako vypo\u010d\u00edtame elektrick\u00fd odpor?","answers":["R = U*I","R = U\/I","R = I\/U","R = I*U"],"correct":"R = U\/I","order":"6"},{"question":"Ktor\u00fd zo vzorcov pre v\u00fdpo\u010det v\u00fdkonu spotrebi\u010da je spr\u00e1vny?","answers":["P = R*I2","P = I2*t","P = R*I2*t","P = R*t"],"correct":"P = R*I2","order":"7"},{"question":"Ktor\u00fd zo vzorcov pre v\u00fdpo\u010det v\u00fdkonu spotrebi\u010da je spr\u00e1vny?","answers":["P = U2\/R","P = t*U2","P = t*U2\/R","P = t\/R"],"correct":"P = U2\/R","order":"8"},{"question":"Pr\u00edkon spotrebi\u010da bol 10 W. \u010cas, za ktor\u00fd sa vykonala elektrick\u00e1 pr\u00e1ca bol 12 sek\u00fand. Ak\u00e1 ve\u013ek\u00e1 pr\u00e1ca sa vykonala? (v jouloch)","answers":["1.2","22","120","2"],"correct":"120","order":"9"},{"question":"Nap\u00e4tie v spotrebi\u010di je 12 V. Odpor v \u0148om je 10 W. Ak\u00fd je v\u00fdkon spotrebi\u010da?","answers":["1.44","14.4","0.144","144"],"correct":"14.4","order":"10"}]