A.same current B.same current and potential difference C.different current but same potential difference D.different current and potential differences
A.IRt B.I2R C.I2Rt D.VIt
A.100 watt B.200 watt C.300 watt D.60 watt
A.high power B.high voltage C.high current D.over heating
A.the internal resistance of battery is infinite B.the internal resistance of battery is zero C.the battery is charged D.the battery is discharged
A.? B.? C.? D.?
A.watt B.horse power C.kilo watt D.kilowatt hour
A.one second B.one day C.one minute D.one hour