A moving coil galvanometer can be converted into a ammeter by
introducing a shunt resistance rs, of small value in parallel It can be
converted into a voltmeter by introducing a resistance of a large value
in series Rationalised 2023-24
Physics
134
Physical Quantity
Symbol
Nature
Dimensions
Units
Remarks
Permeability of free
m0
Scalar
[MLT –2A–2]
T m A–1
4p ´ 10–7 T m A–1
space
Magnetic Field
B
Vector
[M T –2A–1]
T (telsa)
Magnetic Moment
m
Vector
[L2A]
A m2 or J/T
Torsion Constant
k
  Scalar
[M L2T –2]
    N m rad–1
Appears in MCG
POINTS TO PONDER
1 Electrostatic field lines originate at a positive charge and terminate at a
negative charge or fade at infinity