Question

An ammeter of resistance 0.6 Ω can measure current upto 1.0 A. Calculate

(a) The shunt resistance required to enable the ammeter to measure current upto5.0 A

(b) The combined resistance of the ammeter and the shunt.​

Answer 1

Answer:

a)We know that,V=IR

Given,

R=0.6 ohm

I=1 A

then V=1×0.6=6 V

Now,

V=6V

I=5A

shunt resistance=V/I

6/5=1.2ohm...

b)Combined resistance of ammeter and shunt

1.2 ohm+0.6 ohm

--->1.8 ohm

Hope its helps...