Question

Five 4 Ω resistances are given (2)
i. Illustrate the combination to get the highest resistance and the lowest resistance with all these.
ii. Calculate the Effective resistance in each case

Answer 1

Explanation:

For parallel arrangement,

R

eq

1

=

R

1

1

+

R

2

1

+

R

3

1

+

R

4

1

.

Resistance of every resistor =2Ω

⇒

R

eq

1

=

2

1

+

2

1

+

2

1

+

2

1

=2

⇒R

eq

=

2

1

=0.5Ω.