How to calculate electrical units per electrical device and money cost. Most of equipment have there specific input voltage and power rating(230v-150w ,what you should do first, calculating the total power rating of all device. Example Device power rating Television = 150w Fan = 50w Radio = 80w AC = 200W Bulb = 20w … Read more
STA 540 replace with TDA IC STA540 IC CAN REPLACE WITH TDA 7779 IC TDA7377 IC TDA 7379 IC TDA 5079 IC
FORM SIX (6) RESULT 2020 Form six result released with THE NATIONAL EXAMINATIONS COUNCIL OF TANZANIA (NECTA) Advanced Certificate of Secondary Education Examination (ACSEE) Result 2020 Go direct to NECTA website home page Matokeo >> link 1 https://necta.go.tz/ MATOKEO YA KIDATO CHA SITA 6 | 2021
FORM SIX (6) RESULT 2020 Form six result released with THE NATIONAL EXAMINATIONS COUNCIL OF TANZANIA (NECTA) Advanced Certificate of Secondary Education Examination (ACSEE) Result 2020 Go direct to NECTA website home page https://necta.go.tz/ MATOKEO YA KIDATO CHA SITA 6 | 2021
STA540 4x13W dual/quad power amplifier The STA540 is a 4-channel, class AB audio amplifier designed for high quality sound applications. The amplifiers have single-ended outputs with integrated short-circuit protection ,thermal protection and diagnostic functions. FEATURES 2x38W into 4Ω at 18 V ,1 kHz, 10%THD 2x34W into 8Ω at 22 V ,1 kHz, 10%THD 2x24W into … Read more
TRANSISTOR TESTING Connections of digital multi meter (DMM) for testing a transistor. The reading 2.60V is equivalent to OL for some of (DMMs) Test your self Which terminal of a Bipolar junction transistor (BJT) is Base, Collector, Emitter? X=……….? Y=……….? Z=……….? The BJT transistor under testing is NPN or PNP ? There fore X= EmitterY=BaseZ=Collector … Read more
FORM SIX (6) RESULT 2020 Form six result released with THE NATIONAL EXAMINATIONS COUNCIL OF TANZANIA (NECTA) Advanced Certificate of Secondary Education Examination (ACSEE) Result 2020 Go direct to NECTA website home page https://necta.go.tz/ MATOKEO YA KIDATO CHA SITA 6 | 2021
FORM SIX (6) RESULT 2020 Form six result released with THE NATIONAL EXAMINATIONS COUNCIL OF TANZANIA (NECTA) Advanced Certificate of Secondary Education Examination (ACSEE) Result 2020 Go direct to NECTA website home page https://necta.go.tz/ MATOKEO YA KIDATO CHA SITA 6 | 2021
ELECTROMAGNETISM A permanent magnet is a piece of ferromagnetic material (such as iron,nickel or cobalt) which has properties of attracting other pieces of these materials. A permanent magnet will position itself in a north and south direction when freely suspended. The north-seeking end of the magnet is called the north pole, N, and the south-seeking … Read more
CIRCUIT BREAKER Circuit breaker; An automatic device for stopping the flow of current in an electric circuit as a safety measure. RCCB = Residual current circuit breaker ELCB = Earth leakage circuit breaker MCB = Miniature circuit breaker MCCB = moulded case circuit breaker