Question

193 DA, DB
5. Find the resistance R1 in following figure such that the resistor R4 will receive maximum
power.
R
w
R3
w
50 12
+
100 V
R2
502
R4
50 12
=
Marks
Level
Descriptions​

Answer 1

Answer:

Req = R + R + R + R = 4R ohm

Total current in the circuit, I = V/R = 12/4R = 3/R

Reading of voltmeter A = Voltage across R1 = I x R1 = 3/R x R = 3V

Reading of voltmeter B= Voltage across R2 = I x R2 = 3/R x R = 3V

reading of voltmeter= I (R3+R4)

6 v

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