Concerning 82883

Conductor A has an electrical potential of +140V concerning the Earth; conductor B has a potential of -60V. How much electric charge will we transfer from wire B to wire A if we do the work of 4.10-4 Joules?

Correct answer:

Q =  2.0E-6 C

Step-by-step explanation:

U1=+140 V U2=60 V W=4 104=0.0004 J  U=U1U2=140(60)=200 V  W = U Q  Q=W/U=0.0004/200=2.0106 C



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