USB-C connector

[Jane]

If I plug in USB-C charger into USB-C connector, on which  pins I can   measure  the voltage coming from the charger?
 ( there are so many pins on USB-C connector    )

[Deepak]

USB-C is symmetrical, and you want the GND and VBUS terminals.

[timgiles]

VBUS and ground

[Richard Crowley]

Remember that USB-C power is NOT static like older, more primitive power schemes.  There are at least three different voltage and current states that are negotiated between the power source and the load. And there is also provision for "proprietary" power modes. So if you simply measure the static voltage, that is only the "default" voltage/current.

Ref: https://en.wikipedia.org/wiki/USB-C#USB_Power_Delivery_Specification

[vignesh_shan]

If i connect the device which requires around 3A current in the USB 3.0 PC. Does all the USB (Type A connector female)3.0 PC provide 3A current? 
Also pls let me know the link for device hardware configuration to getting 3.0A current in the Type C connector.

[tooki]

If i connect the device which requires around 3A current in the USB 3.0 PC. Does all the USB (Type A connector female)3.0 PC provide 3A current?

No. The USB 3.0 standard provides for 5V/0.9A, so that's all you can expect to be available.

Also pls let me know the link for device hardware configuration to getting 3.0A current in the Type C connector.

To go beyond 5V/1.5A, you have no choice but to use USB Power Delivery negotiation. (Not including proprietary charger schemes like Apple's 2.7V sense voltage to get 5V/2.4A.)