1) The voltage is measured from 0 on up to as much as 20. Between which two poin

Question

1) The voltage is measured from 0 on up to as much as 20. Between which two points is this circuit grounded?

2) For a given voltage and current, give the resistances (internal and load) that match.

3) Give an equation that solves for the current (I) given the emf (V)  and two resistances (Rinternal and Rload).

4) For a generalized emf (V), resistances (Rinternal and Rload), suppose we cut the wire between points b and c. What would the voltage be at point b, and why?

Answers and explanations please for 5 stars.

The voltage is measured from 0 on up to as much as 20. Between which two points is this circuit grounded? For a given voltage and current, give the resistances (internal and load) that match. Give an equation that solves for the current (I) given the emf (V) and two resistances (R internal and R load). For a generalized emf (V), resistances (R internal and R load), suppose we cut the wire between points b and c. What would the voltage be at point b, and why?

Explanation / Answer

a)between A and C

b)I=V/(Rinternal + Rload)

c)at point b ,voltage will be V as there is no current in the circuit.

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