Summer Camp. Santa Cruz County Summer Camp. Location: Camp Loma. 2017 Summer Camp. Available to Santa Cruz and San Benito County Members. 4-H Summer camp gives youth a chance to explore the outdoors, meet new friends, try new things, and create memories they will remember for a lifetime.
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. A varying current in one coil of the transformer produces a varying magnetic field, which in turn induces a voltage in a second coil. Power can be transferred between the two coils through the magnetic field, without a metallic connection between the two circuits.
1 A transformer that increases the voltage is called a step-up transformer. 2  A transformer that decreases the voltage is called a step-down transformer. 3  Step-down transformers are used in mains adapters and rechargers for mobile phones and CD players. 4  Transformers do not work with dc direct current: Also called 'DC'. transformer changes a high-voltage supply into a low-voltage one, or vice versa. 1  A transformer that increases the voltage is called a step-up transformer. 2  A transformer that decreases the voltage is called a step-down transformer.