Question

Advantages and disadvantages of MCG​

Answer 1

$\huge\star\mathfrak\blue{{Answer:-}}$

Advantages

1)Not affected by the strong magnetic field

2)have high torque weight ratio

3)very accurate and reliable

4)scales are uniform

disadvantages

1)change in temperature affects restoring torque

2)restoring torque can not be change easily

3)such instrument can not be used for AC current

4)possiblity of damaging of phosphorous bronze wire and helicel spring arising out of several torques

$\huge\star\mathfrak\pink{{Thanks}}$

Answer 2

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MCG = Moving Coil Galvanometer

$\huge\purple{\mathcal{Advantages}}$

★ High sensitivity.

★ Not easily affected by stray magnetic fields.

★ The torque to weight ratio is high.

★ High accuracy and reliability.

$\huge\purple{\mathcal{Disadvantages}}$

★ It can be used only to measure direct currents.

★Develops errors due to factors like aging of the instrument, permanent magnets and damage of spring due to mechanical stress.