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The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, its new equivalent becomes R1 & if it is connected in series to the group, its new equivalent becomes R2 we have
  • a)
    R1 > R 
  • b)
    R1 < R
  • c)
    R2 > R
  • d)
     R2 < R
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
The equivalent resistance of a group of resistances is R. If another r...
In parallel combination the equivalent resistance is smaller than the smallest and in series is it greater than the greatest hence in series it will increase, so option c)
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The equivalent resistance of a group of resistances is R. If another r...
The new equivalent resistance, R1, can be calculated using the formula for resistances in parallel:

1/R1 = 1/R + 1/Rx

Where R is the original equivalent resistance of the group and Rx is the resistance connected in parallel.

Simplifying the equation:

1/R1 = (R + Rx)/(R * Rx)

To find R1, we can take the reciprocal of both sides:

R1 = (R * Rx)/(R + Rx)

Therefore, the new equivalent resistance, R1, of the group with the additional resistance connected in parallel is given by (R * Rx)/(R + Rx).
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The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, its new equivalent becomes R1& if it is connected in series to the group, its new equivalent becomes R2we havea)R1> Rb)R1< Rc)R2> Rd)R2< RCorrect answer is option 'C'. Can you explain this answer?
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The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, its new equivalent becomes R1& if it is connected in series to the group, its new equivalent becomes R2we havea)R1> Rb)R1< Rc)R2> Rd)R2< RCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, its new equivalent becomes R1& if it is connected in series to the group, its new equivalent becomes R2we havea)R1> Rb)R1< Rc)R2> Rd)R2< RCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, its new equivalent becomes R1& if it is connected in series to the group, its new equivalent becomes R2we havea)R1> Rb)R1< Rc)R2> Rd)R2< RCorrect answer is option 'C'. Can you explain this answer?.
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