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?

a. between c and d

b. between b and c

c. between a and b

d. between a and d

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

a) 11 V, 0.65 A                1) internal 3 ohm, load 7 ohm

b) 20V, 2.22 A                      2) internal 9 ohm, load 8ohm

c) 4 V, 0.20 A                       3) internal 9 ohm, load 6ohm

d) 16 V, 1.60 A                    4) internal 1 ohm, load 2 ohm

e) 8 V, 2.67 A                     5) internal 10 ohm, load 10 ohm

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?

Explanation / Answer

my answer is 1)C

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