Question

you are supplied with the number of 100 ohm resistors how could you combine some of these resistors to make a 250 ohm resistor​

Answer 1

$\huge{\textbf{\pink{SOLUTION}}}$

We need 4 resistors to do so.

Two resistors are connected in series. Net resistance:

100 + 100 = 200ohms

This is then connected in series to two parallel resistors

Net resistance :

$\frac{1}{100}$ + $\frac{1}{100}$ = $\frac{2}{100}$ = 50ohms

>> 200 + 50 = 250ohms

The diagram is given in the attachment

Answer 2

Answer:

Firstly we will take 2 100ohm resistance in series i.e. 100+100ohm=200ohm

Then we will arrange two 100ohm resistors in parallel like this..

and then

we will get

50ohm

thus, 200+50=250ohm Ans.