## anonymous one year ago The primary coil of a transformer has 1,000 turns of wire, and its secondary coil has 2,000 turns of wire. The input voltage is 140 V. What is the output voltage of the transformer? 280 V, 420 V, 60 V , or 70 V

1. anonymous

is it just 140 * 2 =280 V as the solution? :/

2. anonymous

2:1 step up transformer : T = Vs / Vp = 2 ; ⇒ Vs = 2 Vp = 2 × 140 = 280 V

3. anonymous

=280 V

4. Michele_Laino

we have the subsequent equation: $\large \frac{{{V_1}}}{{{V_2}}} = \frac{{{N_1}}}{{{N_2}}}$

5. anonymous

ooh yay thanks!:)

6. anonymous

np