A battery has an emf E and internal resistance r. A variable resistance R is connected across the terminals of the battery. Find the value of R such that (a) the current in the circuit is maximum (b) the potential difference across the terminals is maximum.

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter29: Direct Current (dc) Circuits
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. A battery has an emf E and internal resistance r. A variable resistance R is connected across
the terminals of the battery. Find the value of R such that (a) the current in the circuit is
maximum (b) the potential difference across the terminals is maximum.
Transcribed Image Text:. A battery has an emf E and internal resistance r. A variable resistance R is connected across the terminals of the battery. Find the value of R such that (a) the current in the circuit is maximum (b) the potential difference across the terminals is maximum.
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