4. In an electrical circuit it is known that the voltage V varies as the current I

(ie. that V is directly proportional to 1). It is also known that V = 36

when I = 8.

a Find a formula for V in terms of I.

b Find V when I = 14.

с Find / when V = 27.

Question

25 April, 12:13

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Answers (1)

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Pugsley · Answer 1

Step-by-step explanation:

V∝I

V=kI

36=k*8

k=36/8

k=4.5

a. V=4.5I

b. V=4.5*14

V = 63

c. 27=4.5I

I=27/4.5

I = 6

4. In an electrical circuit it is known that the voltage V varies as the current I(ie. that V is directly proportional to 1). It is also known that V = 36when I = 8.a Find a formula for V in terms of I.b Find V when I = 14.с Find / when V = 27.