Hi Guys,
I'm currently revising for my Unit 203 (2330) Exam
Going through the book "Electrical Installation Calculations" I'm struggling on a question.
"Calculate the value of a resistor which, when connected in parallel with the given resistor, will produce the value asked for."
Given resistance = 48
Resistance required = 12
I know the answer to this is 16, but i'm struggling to work out how to get there.
I know how to calculate total resistance in parallel (1/R + 1/R = 1 / R = RT) but i'm not sure how to calculate the missing value.
P.S. Not homework, just revision!
I'm currently revising for my Unit 203 (2330) Exam
Going through the book "Electrical Installation Calculations" I'm struggling on a question.
"Calculate the value of a resistor which, when connected in parallel with the given resistor, will produce the value asked for."
Given resistance = 48
Resistance required = 12
I know the answer to this is 16, but i'm struggling to work out how to get there.
I know how to calculate total resistance in parallel (1/R + 1/R = 1 / R = RT) but i'm not sure how to calculate the missing value.
P.S. Not homework, just revision!