Advertisements
Advertisements
Question
What is the equivalent resistance between A and B in the given circuit (Fig?)
Advertisements
Solution
Between A and B, the series combination of two resistors of resistances 2 ohm each is connected in parallel with the 1 ohm resistor.
:. Equivalent series resistance between A and B, R, = 2+2 = 4 Ω
Now, between A and B this 4 Ω resistor is connected in parallel with 1Ω resistor.
Equivalent resistance between A and B, R = `(1/4 + 1/1)^-1= (5/4)^-1 = 4/5`Ω
APPEARS IN
RELATED QUESTIONS
Find the expression for the resistors connected in series and write the two characteristics of it. (Draw figure).
Why is the series arrangement not used for domestic circuits?
Find the equivalent resistance between points A and B
What is (a) highest, and (b)Ω lowest, resistance which can be obtained by combining four resistors having the following resistances?
4 Ω, 8 Ω, 12 Ω, 24 Ω
State how are the two resistors joined with a battery when equivalent resistance is more than either of the two resistances.
You have three resistors of values 2 `Omega`, 3 `Omega`, and 5 `Omega`. How will you join them so that the total resistance is less than 2 `Omega`?
A given metallic wire of resistance R is doubled on itself. What will be its new resistance?
State expression for Cells connected in parallel.
State a relation between electrical power, resistance and potential difference in an electrical circuit.
