You work as a techrical analyst for a large publisher of engineering text books. One of their well$-$known authors has set a number of further problems in her latest draft engineering text, almed at the level four engineering market. She wishes to set these further problems throughout the text and intends to provide the worked solutions on a comparion website for the new book. The author has asked you to provide these worked solutions. The further problems are given in the following tasks: $-$

Activity:

a$)$ A simple series DC circuit is given in Figure $1$:

Determine;

The total resistance seen by the battery.

ii$.$ The crout current.

iii. The voltage across R$2.$

tv$.$ The power developed in R$2$