Question

Name an instrument that measures electric current
in a circuit. Define the unit of
electric current.​

Answer 1

Answer:

$\large\bf\underline{\color{black}\underline{\color{black}\purple{Answer : }}} \:$

an instrument that measures

electric current is

$\large\bf\pink{Ammeter} \:$

the unit of electric current is

$\large\bf\pink{Ampere} \:$

Answer 2

Question:

Name an instrument that measures electric current in a circuit. Define the unit of electric current.

Answer:

---› Ammeter is an instrument that measures electric current in a circuit. It is always connected in series in a circuit through which current is to be measured.

---› The electric current is expressed by unit called ampere.

More to know:

• The electric current is expressed by unit called ampere, named after French scientist, Andre-Marie Ampere.

•One Ampere is constituted by the flow of one Coulomb of charge per second, that is,

ㅤㅤ$\mathsf{1A=\large\frac{1C}{1s}}$

•Small quantities are expressed in milliampere $\color{red}\mathsf{[1mA={10}_{-3}A]}$ or by microampere $\color{blue}\mathsf{[μA={10}{-6}A]}$

•Electric current flows in the circuit from positive terminal of the cell to the negative terminal of the cell through the bulb and Ammeter.