Calculate Rsh and R1: 3V Meter Movement

[cyberjupiter]

Homework Statement

A 1mA meter movement with an internal resistance of 50 Ohm is to be used. The battery voltage is 3V. Half scale deflection is 0.5 Ohm. Calculate the value of R1 and Rsh.

Homework Equations

Vsh = Vim

IshRsh = ImRm

The Attempt at a Solution

I don't understand what it means by half scale deflection 0.5 Ohm. I thought scale deflection is in ampere. In order to find Ish I first need to know the value of I but I don't know what is I.

 

[berkeman]

Homework Statement

A 1mA meter movement with an internal resistance of 50 Ohm is to be used. The battery voltage is 3V. Half scale deflection is 0.5 Ohm. Calculate the value of R1 and Rsh.

Homework Equations

Vsh = Vim

IshRsh = ImRm

The Attempt at a Solution

I don't understand what it means by half scale deflection 0.5 Ohm. I thought scale deflection is in ampere. In order to find Ish I first need to know the value of I but I don't know what is I.

Yeah, the question is a little confusing at first. Is there a figure or other drawing that you can post that shows what R1 and Rsh are?

 

[cyberjupiter]

I'm sorry but i don't have any diagram given. Only that question is given.