a dual-range d.c. voltmeter has a common negative terminal and two positive terminals, one of which gives full deflection of 10V, and the other of full deflection 3V. Given that the voltmeter resistance btw negative terminal & the other of full deflection of +3V is 1000 ohm. what is the resistance btw negative terminal and terminal of +10V?(adsbygoogle = window.adsbygoogle || []).push({});

i use V is proportional to R method.

3V ---> 1000 ohm

10V ---> 3333 ohm

is that the working. the answer is correct, but i doubt if the working is just like that. thank you.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: D.c. circuit

**Physics Forums | Science Articles, Homework Help, Discussion**