Answer on Electric Circuits Question for dale batidor
E EMF, r is internal resistance, R is resistance of whole circuit.
If the circuit is short-circuited then R will be 0 ohm
P(if R=0)=1.5*30=45 w(on internal resistance)
P(if R not 0, light bulb resistance, for example)=1*1.5=1.5 w - is much less
than 45 w
but P(r)=1*0.05=0.05 w(power on internal resistance, with connected light bulb)
Need a fast expert's response?Submit order
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!