Question

R1 = 3 ohm
R1 = 2 ohm
R3 = 5ohm
find the minimum effective resistance and maximum effective resistance. V = 30 volts find I = ?​

Answer 1

Answer:

Hello mate✔✔✔

Given :-

• R1 = 3 ohm
• R2 = 2 ohm
• R3 = 5 ohm
• V = 30 V

(i) For maximum resistance :

R = R1 + R2 + R3

=> R = 3 + 2 + 5

=> R = 10 ohm

From Ohm's Law,

V = IR

=> I = V/R

=> I = 30/10

=> I = 3 A

(ii) For minimum resistance :

$\frac{1}{</strong><strong>R</strong><strong>} = \frac{1}{</strong><strong>R</strong><strong>1} + \frac{1}{</strong><strong>R</strong><strong>2} + \frac{1}{</strong><strong>R</strong><strong>3} \\ = > \frac{1}{</strong><strong>R</strong><strong>} = \frac{1}{3} + \frac{1}{2} + \frac{1}{5} \\ = > \frac{1}{</strong><strong>R</strong><strong>} = \frac{10 + 15 + 6}{30} \\ = > \frac{1}{</strong><strong>R</strong><strong>} = \frac{31}{30} \\ = > </strong><strong>R</strong><strong> = 1.03</strong><strong> </strong><strong> </strong><strong>ohm</strong><strong>$

From Ohm's Law,

V = IR

=> I = V/R

=> I = 30/1.03

=> I = 29.12 A

Hope it helps✔✔✔

#answerwithquality # BAL