Question

hola..❣️

Application of potentiometer.​

Answer 1

Application of Potentiometer :-

• A potentiometer can be used to measure the internal resistance of cell which cannot be measured by the voltmeter.
• A Potentiometer can be to measure e.m.f of a cell which cannot be measured by a voltmeter.
• When a voltmeter is connected in a circuit it draws current through the circuit and thus can measure the potential difference across the cell terminals.
• When the potentiometer is connected in a circuit it draws no current when the null point is obtained. Thus it measures the e.m.f. of the cell.
• A potentiometer can be used to measure extremely small p.d. accurately which cannot be measured by a voltmeter.
• It can be done by using very long wire and adjusting a very small potential gradient.
• Potentiometer is more sensitive compared to voltmeter.
• The accuracy of the potentiometer can be increased by increasing the length of the wire. The accuracy of the voltmeter cannot be increased beyond the limit.

Answer 2

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

$\bold{QUESTION:}$

Application of potentiometer.

$\rule{300}{1.5}$

$\huge{\pink {\sf\underline{Answer}}}$

Potentiometers are used in

• radio and television for volume control
• they are used in word processing machine
• they are used in medical equipment
• used as voltage divider in the circuit
• used in injection mould machine

════════════════════════════

$<marquee behavior=move bgcolor =white ><h1 >Thanks♡</h1></marquee >$

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬