82 a b ɛ =12V a) Find the potential difference between points a and b and b) Find the current in the 6-SN resistor.
82 a b ɛ =12V a) Find the potential difference between points a and b and b) Find the current in the 6-SN resistor.
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Question
Transcribed Image Text:12 2
b
E =12V
a) Find the potential difference between points a and b and
b) Find the current in the 6-N resistor.
Expert Solution
Step 1
The given problem consists of a circuit with a 12 V emf source, and three resistors with resistances
The resistances 12 and 6 are connected parallel to each other, and these are connected in series with the 8 ohm resistor.
The parallel combination of the resistors 12 and 6 are connected between points a and b. So it can be said that the equivalent resistance of these resistors is connected between points a and b. So the potential difference between points a and b will be equal to the potential difference across this equivalent resistance.
For resistors connected in series, their equivalent resistance is given as
And for resistors in parallel,
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