A moving coil galvanometer, having a resistance G, produces full scale deflection when a current Ig flows through it. This galvanometer can be converted into (i) an ammeter of range 0 to I0(I0 > Ig) by connecting a shunt resistance RA to it and (ii) into a voltmeter of range 0 to V(V = GI0) by connecting a series resistance RV to it. Then,
a)
RARV = G2 and 
b)
RARV = G2
and 
c)
RARV = G2 and 
d)
RARV = G2 
and 
a)
RARV = G2 and
b)
RARV = G2 and
c)
RARV = G2 and
d)
RARV = G2 and
Question ID - 51541 | SaraNextGen Top Answer A moving coil galvanometer, having a resistance G, produces full scale deflection when a current Ig flows through it. This galvanometer can be converted into (i) an ammeter of range 0 to I0(I0 > Ig) by connecting a shunt resistance RA to it and (ii) into a voltmeter of range 0 to V(V = GI0) by connecting a series resistance RV to it. Then,
a)
RARV = G2 and
b)
RARV = G2 and
c)
RARV = G2 and
d)
RARV = G2 and
A moving coil galvanometer, having a resistance G, produces full scale deflection when a current Ig flows through it. This galvanometer can be converted into (i) an ammeter of range 0 to I0(I0 > Ig) by connecting a shunt resistance RA to it and (ii) into a voltmeter of range 0 to V(V = GI0) by connecting a series resistance RV to it. Then,
|
a) |
RARV = G2 and |
b) |
RARV = G2 |
|
c) |
RARV = G2 and |
d) |
RARV = G2 |
V = Ig (RV + G) = GI0 …(1)
(I0 – Ig)RA = IgG ...(2)
From (1), RV = 
From (2), RA = 
⇒ RARV = G2
