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प्रश्न
Complete the following :-
(c)

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उत्तर
(c)

`"The equivalent resistance is "R_(eq)=2+(1/2+1/2)=2+2/2=2+1=3Omega`
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संबंधित प्रश्न
Differentiate between resistances in series and parallel.
How many 176 Ω resistors (in parallel) are required to carry 5 A on a 220 V line?
Show how you would connect two 4 ohm resistors to produce a combined resistance of (a) 2 ohms (b) 8 ohms.
A wire that has resistance R is cut into two equal pieces. The two parts are joined in parallel. What is the resistance of the combination?
A resistor has a resistance of 176 ohms. How many of these resistors should be connected in parallel so that their combination draws a current of 5 amperes from a 220 volt supply line?
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A battery of e.m.f 16 V and internal resistance 2 Ω is connected to two resistors 3Ω and 6Ω connected in parallel. Find:
- the current through the battery.
- p.d. between the terminals of the battery,
- the current in 3 Ω resistors,
- the current in 6 Ω resistor.
What is the equivalent resistance of 5 equal resistors, each of value 2`Omega` 1 when oonnected in (a) Series ( b) ParaIleI?
What are the advantages of a parallel connection?
The circuit diagram Fig shows three resistors 2 Ω, 4 Ω and R Ω connected to a battery of e.m.f. 2 V and internal resistance 3 Ω. If main current of 0.25 A flows through the circuit, find:

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- the p.d. across the R Ω or 2 Ω resistors
- the value of R.
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