# How do you integrate the area under a curve in origin?

## How do you integrate the area under a curve in origin?

For Integration gadget, go to Gadgets:Integrateand click OK in the coming up dialog to bring up the yellow Region of Interest (ROI) box. Drag to position and resize the box to the area you want to calculate, then the Area and FWHM information will show up on the ROI top.

## How do you find the capacitance of a GCD?

This is easy to measure from the GCD curve as follow. Specific charge capacity = current x time / electrode mass. Note that you cannot use the GCD curve of a single electrode to calculate the energy value. The energy calculation must be based on GCD curves recorded from a two electrode cell.

How is capacitance measured?

Capacitance is expressed as the ratio of the electric charge on each conductor to the potential difference (i.e., voltage) between them. The capacitance value of a capacitor is measured in farads (F), units named for English physicist Michael Faraday (1791–1867). A farad is a large quantity of capacitance.

Supercapacitors are constructed with two metal foils (current collectors), each coated with an electrode material such as activated carbon, which serve as the power connection between the electrode material and the external terminals of the capacitor. Specifically to the electrode material is a very large surface area.

### Are supercapacitors dangerous?

Both capacitors and super capacitors can be dangerous, but in different ways. If you have a 500v capacitor that has a capacitance of 100nf, and you touch your finger to the positive and negative lead, you can get a nasty shock. The capacitor will instantly discharge through you and IT WILL HURT.

### Will Tesla use supercapacitors?

New electric vehicle battery technology from Tesla to be outlined at its upcoming Battery Day in April will involve a combination of dry cell and supercapacitor technology, sources in China have revealed.

Which type of capacitor is polarized?

Electrolytic capacitors