Question

if the total resistance of 4 equal resiatance in parallel is 7.5 ohm then find the value of each resistor​

Answer 1

Answer:

$Given: R1=2ohm, R2=3 ohm, R3=6ohm</p><p>Formula: R1=R11+R21+R31=21+31+61</p><p>∴R=63+2+1=66=1ohm.</p><p></p><p>$

Answer 2

Answer:

28 ohm

Explanation:

equivalent resistance = 1/Rt = 1/R1 + 1/R2 + 1/R3

=1/r+1/r+1/r+1/r

=4/r

from the question

4/r=1/7.5

r=4×7.5

r=28