A thermo-couple ammeter gives full-scale deflection of 10A.

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A thermo-couple ammeter gives full-scale deflection of 10A. when it reads one fifth of the scale, the current will be _________A

1. 4.47
2. 3.47
3. 5.57
4. 4

Correct Option: A

	Q₁	=	I₁²
	Q₂		I₂²

∴	5	=	10²
	1		I₂²

or I₂ = 4.47 A