Which component is used to measure the current in a circuit? a. switch b. resistor c. ammeter d. voltmeter

The answer is C) amperemeter

Explanation:

An ammeter is made up of a galvanometer which is constructed with an indicator needle, a spring, a coil, and 2 permanent magnets and its operation is based on magnetism. The needle is attached by a spiral spring to the axis of a rectangular coil, which is suspended due to the magnetic field of the magnets.

Because the coil is controlled by the magnetic poles of the magnets when a current passes over it generates its own magnetic field which makes it turn depending on the meaning and force of this electrical intensity.

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can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s