Question

when three resistors of equal resistance is connected in series , an equivalent resistance of 45ohm produced. when they are connected in parallel, what will be their equivalent resistance

Answer 1

3R = 45
R=15 ohm
1/R eq = 3/R
1/R(eq) = 3/15
R(eq) = 15/3 = 5 ohm

Answer 2

Heya frnd!!

Series connection =>
R+R+R=45 (ive no symb)

=>3R=45
=>R=15

Parallel connection=>
1/R+1/R+1/R=3/15=1/5
=>R=5

Hope it helps ☺