R, 3. R2 R3

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a) find the current across R3? b) fin the voltage at R2?
The following figure shows 3 resistors R1
22 kN R2
11 k R3
11kconnected to a battery source emf E=9 volts
R1
3.
R2
{ R3
Transcribed Image Text:The following figure shows 3 resistors R1 22 kN R2 11 k R3 11kconnected to a battery source emf E=9 volts R1 3. R2 { R3
Expert Solution
Step 1

The resistance given are

R1=22 kilo ohm=22×103 ohmR2=11 kilo ohm=11×103 ohmR3=11 kilo ohm=11×103 ohmThe mf of the battery, ε=9 VoltsR2 and R3 resistances are parallel to one another.Rp=R2R3R2+R3=11×1111+11=5.5 kilo ohm=5.5×103 ohmRp and R1 are in series combination, so the equivalent resistance of the circuit is ReqReq=Rp+R1       =(5.5+22) kilo ohm       =27.5 kilo ohm        =27.5×103 ohm

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