Rheostats 20 Ohms- Nichrome Type, Bell Terminals

The Rheostats 20 Ohms - Nichrome Type with Bell Terminals are a type of variable resistor or potentiometer with bell-shaped terminals, commonly used in electrical circuits to vary resistance and control current flow.

Main features and description:

They have bell terminals with one at each end of the nichrome resistance wire and one at the slider rod, allowing use as a potentiometer.

The resistive element is a wire made of Nichrome, an alloy with high resistivity and good heat tolerance.

Designed for manual adjustment, a sliding contact moves along the coil to change resistance continuously.

Typical resistances available include 10, 20, 30, 50, and 100 Ohms, supporting various current capacities.

The device structure usually includes a cylindrical insulating base wound with nichrome wire, with terminals providing secure electrical connection.

Often used in laboratory experiments, educational purposes, and testing scenarios needing precise resistance variation.

Provides quick and fine adjustment with a contact installed over a metal-chrome-plated slider rod.