How much total energy is dissipated in 10 seconds in 4.0 ohm resistor with a current of 0.50 ampere?

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Answer 1 · 2017-04-06T06:19:17

The energy is #=20J#

The power of a resistor is

#P=RI^2#

The resistance is #R=4Omega#

The current is #I=0.5A#

The power is

#P=4*0.5=2W#

The energy is

#E=Pt#

#E=2*10=20J#