Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

CURRENT FLOWING THROUGH PARALLEL COMBINATION IS THE SAME IN ALL THE RESISTORS?WHY
Asked by Anjali | 29 Apr, 2012, 11:18: PM
answered-by-expert Expert Answer

The other common connection is two elements in parallel.  Two resistors or any two devices are said to be in parallel when the same voltage physically appears across the two resistors. Schematically, the situation is as shown below.

Note that we have defined the voltage across both resistor (Vp) and the current that flows through each resistor (Ia and Ib) and a voltage variable, Vp, for the voltage that appears across the parallel combination.

        Let's list what we know.

  • The voltage across the two resistors is the same.
  • The current through the parallel combination is given by:
    • Ip= Ia + Ib
  • The currents through the two resistors are given by Ohm's Law:
    • Ia = Vp /Ra
    • Ib = Vp /Rb
        We can combine all of these relations, and when we do that we find the following.
  • Ip= Ia + Ib
  • Ip= Vp /Ra + Vp /Rb
  • Ip= Vp[ 1/Ra + 1/Rb]
  • Ip= Vp/Rparallel
The current get divided in the parallel combination so its same in each branch of equal resistance.
Answered by | 30 Apr, 2012, 10:05: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Physics
write ohm's law for electric circuit. Also write the necessary formula for this .
Asked by khajannirwan | 27 Feb, 2024, 10:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
find Req
question image
Asked by sakshikatewa0 | 08 Feb, 2024, 12:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Will a current carrying conductor produce an electric field?
Asked by saanviyadla | 24 Jan, 2024, 07:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
resistivity
Asked by kamalaranjanmohantymohanty5 | 06 Jan, 2024, 10:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
find the new resistance of wire length l area of cross section A if it is folded 4 times
Asked by nandhikasugumar | 05 Oct, 2023, 04:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
finding the net resistance  
question image
Asked by daniya062008 | 02 Oct, 2023, 08:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
the resistance of a wire of 0.01 cm radius is 10 ohm.if the resistivity of the material of the wire is 50*10^-8 ohm meter find the length of the wire
Asked by prassanna.j | 03 Sep, 2023, 12:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Nichrome wire of length L and radius R has resistance 10 ohm.How would the resistance of the wire change when: only diameter of the wire is doubled?Justify 
Asked by prassanna.j | 03 Sep, 2023, 12:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
The resistance of a resistor is kept constant and the potential difference across its two ends is decreased to half of its former value.State the change that will occur in the current through it.
Asked by prassanna.j | 03 Sep, 2023, 12:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
A given length of a wire is doubled of itself and this process is repeated once again.By what factor does the resistance of the wire changes?
Asked by prassanna.j | 03 Sep, 2023, 12:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×