Question

What is the balance point in potentiometer?

Answer 1

Hint: A potentiometer is a voltage divider that consists of a three-terminal resistor with a sliding or revolving contact. It functions as a variable resistor or rheostat when only two terminals, one end and the wiper, are utilised. A potentiometer is a measuring device that is essentially a voltage divider that is used to measure electric potential (voltage); the component is an application of the same concept, thus its name.

Complete answer:
Potentiometers are widely used to regulate electrical devices, such as audio equipment volume controls. Potentiometers that are controlled by a mechanism can be employed as position transducers in a joystick, for example. Because the power dissipated in the potentiometer is equivalent to the power in the controlled load, potentiometers are rarely used to directly regulate substantial power (greater than a watt). Certain varieties of potentiometers are referred to by a variety of terms in the electronics industry:
A potentiometer that is adjusted by moving the wiper left or right (or up and down, depending on the installation), generally with a finger or thumb, is known as a slide pot or slider pot.
A thumb pot, sometimes known as a thumbwheel pot, is a tiny spinning potentiometer that is changed occasionally with a little thumbwheel.
Trimpot or trimmer potentiometer: a trimmer potentiometer is a type of trimmer potentiometer that is used to "fine-tune" an electrical signal occasionally or seldom.
In a potentiometer, the balance point is the point on the sliding wire where the galvanometer exhibits no deflection. The unknown emf of the cell is determined by finding the balancing point. The balancing point of a potentiometer is reached when the potential difference between the positive end and the jockey equals the emf experimental cell.

Note:
Potentiometers are rarely used to control large quantities of power directly (more than a watt or so). They are instead used to regulate the level of analogue signals (for example, volume controls in audio equipment) and as control inputs for electronic circuits. A light dimmer, for example, utilises a potentiometer to regulate the switching of a TRIAC and, as a result, can adjust the brightness of lamps indirectly. Preset potentiometers are frequently employed in electronics when adjustments are required during production or service.