Question

the least resisitence obtained by using 2 ohms , 4 ohms, 1 ohms and 100 ohms is
plss mention the formula

Answer 1

Answer:

Given data:

R_1 = 2 ohmR

1

=2ohm

R_2 = 4 ohmR

2

=4ohm

R_3 = 1 ohmR

3

= 1ohm

R_4 = 100 ohmR

4

=100ohm

Lowest resistance is obtained when resistance is placed in parallel.

Given parallel combination is shown in figure:

\frac{1}{R_{eq}} = \frac{1}{R_1} + \frac{1}{R_2} + \frac{1}{R_3} + \frac{1}{R_4}

R

eq

1

=

R

1

1

+

R

2

1

+

R

3

1

+

R

4

1

\frac{1}{R_{eq}} = \frac{1}{2} + \frac{1}{4} + \frac{1}{1} + \frac{1}{100}

R

eq

1

=

2

1

+

4

1

+

1

1

+

100

1

\frac{1}{R_{eq}} =1.76 ohm

R

eq

1

=1.76ohm

Explanation:

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