Question

The maximum resistance which can be made using four resistors each of 2ohm is?
(a) 2ohm. (b) 4ohm
(c) 8 ohm. (d) 16 ohm

Answer 1

Answer:

for finding maximum resistance we always connect the resistors in series. hence the answer is 8 ohm.

Answer 2

Answer:

Given:

4 resistances each of 2 ohm

To find:

Maximum equivalent resistance that can be formed from a combination of these given resistances.

Concept:

We have 2 basic types of combinations available :

• Series combination
• Parallel combination

Now , In series combination , the current in each resistance remains constant and the voltage gets added up. As a result , the individual resistances also gets added up.

So we can say that in Series combination , the equivalent resistance is larger than the largest available individual resistance.

So ,

$eq. \: resistance = (2 + 2 + 2 + 2)$

$= > eq. \: resistance = 8 \: \Omega$

So final answer :

$\boxed{ \large{ \red{max. \: resistance = 8 \: \Omega}}}$