Resistance Box for Middle School (Educational equipment)

• Model NO.: 2372
• Origin: Yuyao Zhejiang China
• HS Code: 9023000000
• Production Capacity: 5000 PCS/ Month

Product Description

Product Description

Resistance Box (Educational equipment)

Product Introduction
J2360 demonstration resistance box is an anatomical form of plug type resistance box, which is used to demonstrate the basic structure and principle of plug type resistance box, and can also be used as a general constant value resistance.

Product Specification

Product name	Teaching resistance box
Accuracy class	Level 1
Adjustable range of resistance	0 ~ 9999.9 Ω The minimum step value is 0.1 Ω.
Operating temperature	0~40ºC
Relative temperature	25%~80%
Zero resistance	R0<0.035Ω
Reference power	50W
rated power	1W
material	plastic
Size	165×125×60mm

Instructions
J2361 teaching resistance box adopts bakelite sealing structure. The resistance value transformation is in the form of a rotary key switch, which is achieved by rotating the brush to different positions. The resistance element of the instrument is made of highly stable precision alloy manganese copper, which is wound on the porcelain skeleton in a non inductive manner. After strict screening, testing, aging and immersion treatment, the resistance value is stable and correct. When in use, it is connected to the circuit through two terminals on the panel, and a certain resistance value in the range of 0~9999.9 Ω can be obtained by adjusting five knobs. Generally, the value of each knob at the indicated point is read out in sequence from high multiples to low ones, and this value is the resistance indication.

Product feature and application
J2361 teaching resistance box is used for students in ordinary middle schools, technical secondary schools and colleges to carry out the following electrical experiments: verify ohm law of some circuits; Use accessories and resistors to expand the range of the voltmeter; Used to measure unknown resistance; Used as a known resistance to access the circuit to adjust the required current; Used to measure electromotive force and internal resistance of power supply. It is an indispensable instrument in electrical experiments.

Maintenance and precautions
1. The zero resistance and its variation are large;
2. The indication error of resistance box is large;
3. The resistance value is infinite, or several resistance coils are disconnected.
The main reasons above are that the movable
 

Detailed Photos