182k views
3 votes
Two different galvanometers G1 and G2, have internal resistances r1and r2. The galvanometers G1 and G2 require the same current IC1=IC2 for a full-scale deflection of their pointers. These galvanometers G1 and G2 are used to build lab-made ammeters A1 and A2 . Both ammeters A1 and A2 have the same maximum scale reading Imax1=Imax2=Imax. To build A1 ,shunt resistor of resistance Rsh1is used and to build A2 , shunt resistor of resistance Rsh2 is used. The value of these shunt resistor resistances are such that: Rsh1=3Rsh2. What is the ratio oftheir internal resistances: r1:r2?

User Chatman
by
4.7k points

1 Answer

1 vote

Answer:

there are 3 photos attached. so check

Step-by-step explanation:

Two different galvanometers G1 and G2, have internal resistances r1and r2. The galvanometers-example-1
Two different galvanometers G1 and G2, have internal resistances r1and r2. The galvanometers-example-2
Two different galvanometers G1 and G2, have internal resistances r1and r2. The galvanometers-example-3
User Gabriel Ramirez
by
4.5k points