In the circuit diagram, a transformer is being used to change the mains voltage to a lower value so that it will light a 12 V amp. The primary coil has 1000 turns, Calculate how many turns the secondary coil has.

Here, we have to use the following formula of the voltage and number of turns in relation V o u t V i n = N s N p 12 120 = N s 1000 N s = 12 120 × 1000 N s = 100

Which coil has more turns in step down transformer? Enable Ginger Cannot connect to Ginger Check your internet connection or reload the browser Disable in this text field Rephrase Rephrase current sentence Edit in Ginger ×

The step-down transformer is used for reducing the voltage in a.c The voltage in the secondary is given by : voltage in primary voltage in secondary = no . of turns in primary no . of turms in the secons . It is clear from the above that the number of turns in the primary is more in a step-down transformer.

Explain how transformer work. In your answer, consider, The physics that allows them to function. The purpose of the step-up transformer Why we use step down transformer.

A transformer is an electrical device that trades voltage for current in a circuit, while not affecting the total electrical power. This means it takes high-voltage electricity with a small current and changes it into low-voltage electricity with a large current, or vice versa. A transformer operates on the principle of electromagnetic induction. It has a magnetic core over which two sets of windings, termed as primary and secondary, are suitably placed. When one of the windings is connected to an AC supply, an emf is induced on the other winding which is proportional to the number of turns. When the number of turns is more in the secondary coil, then the voltage is increased and this is called as a step-up transformer. This is used when a high voltage is required. When the number of turns in the secondary is less than that in the primary, Then the voltage is decreased and this is called a step-down transformer. It is used when low voltage is required e.g in power supplies and ratifiers.