Representation of Wheatstone Bridge
- Product SKU: LGSK031
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DescriptionWheatstone bridge is commonly used to measure the value of unknown resistance. This type of bridge can be further generalized to measure the unknown resistance, capacitance, and inductance also. One detector is required to measure the small value of current flowing in the bridge. A galvanometer (a device to measure a very small amount of current) is generally used as a detector. As galvanometer is not available in general, hence we have used LEDs to measure the current. The only drawback with the LEDs is that they can not measure very small current values. But for our purpose, it will work well. From the given circuit we can see that four resistance R1, R2, R2, and R4 are connected to form a bridge. LEDs D1 and D2 are connected diagonally to measure the current flowing across them. If the bridge is balanced( if R1*R2 = R3*R4), then no current will flow across D1 or D2. This is the principle of the bridge. Let us connect an unknown resistance R2 to the circuit and connect three known resistances R1, R3, and R4. If the circuit is balanced, then R2 can be calculated by the formula given above.
- Dimensions (cm) L x W x H : 20 x 15 x 5
- Weight (gm): 200
Representation Of Wheatstone Bridge
Amazing Product just looks same as shown in picture..
Very interesting and easy to assemble kit and good for children
Simple and interesting kit for kids. The kids love this and I think it may take sometime for them to understand the concept. But this is good kit.