As a designner you have to obtain results using resistors to follow equation :
R3 <- R1 + R2
What would be an appropriate circuit to do so and why?
The equivalent resistance of the series connection is:
"Req\n\n\u200b=R+R+R+R=4Rohm"
The total current in the circuit ,
"I=V\/R=12\/4R=3\/R"
Reading of voltmeter A = Voltage across R1
"=I\u00d7R1\\\\\n\n\u200b=3\/R\u00d7R=3V"
Reading of voltmeter B = Voltage across R2
"\u200b=I\u00d7R2\\\\\n\n\u200b=3\/R\u00d7R=3V"
Reading of voltmeter C = Voltage across the series combination of R3
and R4
"\u200b=I\u00d7(R3\u200b+R4\n\n\u200b)=3\/R\u00d72R=6V"
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