What is the voltage between two points if 96 mJ of energy are required to move 5

Question

What is the voltage between two points if 96 mJ of energy are required to move 50 times 10^18 electrons between the two points? If the potential difference between two points is 42 V how much work is required to bring 6 C from one point to the other? Find the charge Q that requires 96 J of energy to be moved through a potential difference of 16 v. How much charge passes through a battery of 22.5 V if the energy expended is 90 J? If a conductor with a current of 200 mA passing through it converts 40 J of electrical energy into heat in 30 s, what is the potential drop across the conductor?

Explanation / Answer

18] Voltage = work/charge

= 96e-3/[50e18*1.6e-19]

= 0.012 V answer

22] we know Power = Vi

40/30 = V*0.200

V = [40/30]/0.200

= 6.67 V answer

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