# physics #26

posted by .

How dose the current in the secondary of a transformer compare with the current in the primary when the secondary voltage is twice the primary voltage?

• physics #26 -

What does I2/I1 = N1/N2 = V1/V2 tell you?
In this case V2/V1 = 2

## Similar Questions

1. ### physics prob.

An ideal transformer has 50 turns in its primary coil and 250 turns in its secondary coil. 12 V is connected to the primary. a)find the voltage across the secondary coil. b) find the current in a 10-ohms device connected to the secondary. …
2. ### Physics problem

A transformer has 50 turns in its primary coil and 250 turns in its secondary coil. 12V is connected to the primary. a. Find the voltage across the secondary coil. b. Find the current in a 10 ohm device connected to the secondary. …
3. ### Physics

A transformer has a secondary voltage of 12 V. The primary voltage is 60V. The number of turns in the secondary is 100. How many turns are in the primary?
4. ### Physics - Transformer in AC

A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides 54 W at an rms voltage of 26 V. a) How many turns are in the primary coil?
5. ### Physics

Suppose there are two transformers between your house and the high-voltage transmission line that distributes the power. In addition, assume your house is the only one using electric power. At a substation the primary of a step-down …
6. ### transformers

A resistive load of 2 k is connected across the secondary windings of a 25:1 transformer. If the primary voltage is 50 V AC, what will be the secondary current?
7. ### physics

The function of those little black transformers that clog your power strips is to step down line voltage to run small electronic gadgets. Suppose a fax machine uses an ideal transformer with a primary voltage of 120 V and primary windings. …
8. ### Science

A transformer has 60 turns in the primary and 1200 turns in secondary.if the primary voltage is 500 V what will be the secondary voltage be?
9. ### Physics

The output voltage and current of a transformer are determined by the A. number of turns in the primary and secondary coils. B. ferromagnetic material of the rings connecting the coils. C. strength of the DC current in the primary …
10. ### physics

A step-up transformer has 40 turns on its primary and 100 turns on its secondary. When the primary is supplied with an alternating current at 140 V, what is the voltage across the secondary?

More Similar Questions