Question

There are 4 resistors of 100ohms each.how do you connect them to get a total resistors of 100ohms

Answer 1

Given:

R1 = 20 ohm, R2 = 50 ohm and R3 = 100 ohm

When resistors are connected in series, they literally add up to give the total resistance.

Resistance on series = 20+ 50+ 100

= 170 ohms which is the maximum resistance that can be obtained from this group of resistors.

[IMG]

Similarly, when the resistors are connected in parallel, the resultant is the sum of the inverse of the individual resistors.

Resultant resistance in parallel = 1/20 + 1/50 + 1/100 = 0.05 + 0.02 + 0.01

= 0.08 ohms

The minimum resistance that can be obtained from this parallel combination is 0.08 ohms.

Answer 2

Answer:

I guess if u connect two resistors in parallel and the other two resistors also in parallel near to the first two resistors u may get the total resistance as100ohm

Explanation:

R1 +R2 =1/100+1/100=1/50

R1+R2=50

Similarly R3+R4=50

R1+R2+R3+R4=100