Match column I with column II and select the correct option.

Matrix:

Column I

Column II
a)
Device used to measure electric current
i)
Voltmeter
b)
Device used to measure electric potential
ii)
Galvanometer
c)
Detect the direction of current
iii)
Voltmeter
d)
Device used to measure voltage
iv)
Ammeter

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a – iii; b – iv; c – i; d – ii

a – i; b – ii; c – iii; d – iv

a – iv; b – iii; c – ii; d – i

a – iii; b – i; c – iv; d – ii

answer is C.

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Detailed Solution

An instrument called ammeter measures electric current in a circuit. It is always connected in series in a circuit through which the current is to be measured.
The galvanometer is an instrument for measuring a small electrical current or a function of the current by deflection of a moving coil.
A voltmeter is an instrument used for measuring the electrical potential difference between two points in an electric circuit. The voltmeter is an instrument used for measuring voltage (V).
Matrix:

	Column I		Column II
a)	Device used to measure electric current	i)	Ammeter
b)	Device used to measure electric potential	ii)	Voltmeter
c)	Detect the direction of current	iii)	Galvanometer
d)	Device used to measure voltage	iv)	Voltmeter