Question

Please answer this question with step by step explanation.Answer is also given in the attachment .I need only steps.

Answer 1

Answer:

The English noun summary comes straight from the Latin neuter noun summārium “abridgment, abstract, epitome,” an extremely rare word used only once in the surviving Latin literature by the Roman author, tragedian, statesman, and Stoic philosopher Seneca (the Younger) in one of his Moral Letters to Lucilius (39), in which he complains “…what is now commonly called a ‘breviary’ [ breviārium ] was called, in the good old days, when we used to speak Latin, a ‘summary’ [ summārium ]." (Complaints about the terrible state of the language are nothing new.)

Summārium is a compound of adjective summus “highest, topmost, top” and the noun suffix -ārium. ( Summa, the feminine of summus used as a noun, in mathematics and accounting means “sum, total”: The Romans added their numbers from the bottom up and wrote the total in summā “on the top.”)

Answer 2

Explanation:

R2 and R3 are connected in parallel. So,

1/Rp = 1/R2 + R3

1/Rp = 1/6 + 1/12

1/Rp = 3/12

Rp = 4 ohm

Now, R1 and Rp are connected in series.

Rs = R1 + Rp

Rs = 8 +4

Rs = 12 ohm

Rs and R4 are connected in parallel. Let's

denote the parallel combination by Rp'.

1/Rp' = 1/Rs + 1/R4

1/Rp' = 1/12 + 1/12

1/Rp' = 2/12

Rp' = 6 ohm

Both Rp' and R5 are connected in series. Let's denote the series combination by Rs'.

Rs' = Rp' + R5

Rs' = 6 + 18

Rs' = 24 ohm

Now, using ohms law,

I = V/R

I = 24/18

I = 1.33 A

Current across 18 ohm resistor is 1.33 A.

Net current:

1 = V/R

1 = 24/24

1 = 1 A

R = V/1

R= 24/1

R = 24 ohm