Answer:
a) Approximate the change in R is 0.5 ohm.
b) The actual change in R is 0.04 ohm.
Step-by-step explanation:
Given : The total resistance R of two resistors connected in parallel circuit is given by
To find :
a) Approximate the change in R ?
b) Compute the actual change.
Solution :
a) Approximate the change in R
and
is decreased from 12 ohms to 11 ohms.
i.e.
is increased from 10 ohms to 11 ohms.
i.e.
The change in R is given by,
b) The actual change in Resistance
When resistances are charged,
Change in resistance is given by,