Advertisements
Advertisements
Question
Find the equivalent resistance between points A and B
Solution
As shown in the circuit diagram all the 3Ω resistors re connected in parallel.
`1/R_1=1/3+1/3+1/3`
`R_1=1Omega`
Resistors 4Ω and 6Ω are connected in parallel.
`1/R_2=1/4+1/6=5/12`
`R_2=12/5Omega`
Now R1, R2 and 5Ω are connected in series
`R_(AB)=1+12/5+5`
`R_(AB)=42/5`
`R_(AB)=8.4Omega`
RELATED QUESTIONS
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 same current flows in each resistor.
Choose the correct alternative and rewrite the following sentence.
If three resistors 2 ohms, 3 ohms and 4 ohms are connected in series, then the effective resistance in the circuit will be _______ ohms.
When do you say that the resistors are connected in this way? Draw a circuit diagram.
State expression for Resistance connected in parallel.
You are provided with three resistors of resistance 1.0 Ω, 2.0 Ω and 3.0 Ω How would you connect them to obtain the total effective resistance 1.5 Ω? Draw diagram of the arrangement and check it by calculations.
Four resistances of 2.0Ω each are joined end to end, to form a square ABCD. Calculate the equivalent resistance of the combination between any two adjacent comers.