A galvanometer of resistance 20 ohm is to be converted into an ammeter

1.	A galvanometer of resistance 20 ohm is to be converted into an ammeter of range 1a. Of a current of 1ma produces full scale deflection
Answer» Hii Dear, ◆ ANSWER - Rs = 0.02 Ω ● Explanation - # Given - Ig = 1 mA = 0.001 A Rg = 20 Ω I = 1 A # Solution - Shunt resistance added to convert galvanometer to ammeter is calculated by - Rs = Ig.Rg / (I-Ig) Rs = 0.001 × 20 / (1 - 0.001) Rs = 0.02 Ω Therefore, a shunt resistance of 0.02 Ω NEED to be connected parallel to the galvanometer to convert it into ammeter. Hope this is HELPFUL...

A galvanometer of resistance 20 ohm is to be converted into an ammeter of range 1a. Of a current of 1ma produces full scale deflection

Answer»

Hii Dear,

◆ ANSWER -

Rs = 0.02 Ω

● Explanation -

# Given -

Ig = 1 mA = 0.001 A

Rg = 20 Ω

I = 1 A

# Solution -

Shunt resistance added to convert galvanometer to ammeter is calculated by -

Rs = Ig.Rg / (I-Ig)

Rs = 0.001 × 20 / (1 - 0.001)

Rs = 0.02 Ω

Therefore, a shunt resistance of 0.02 Ω NEED to be connected parallel to the galvanometer to convert it into ammeter.

Hope this is HELPFUL...

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A galvanometer of resistance 20 ohm is to be converted into an ammeter of range 1a. Of a current of 1ma produces full scale deflection

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