Ask question

Ask question

All categories

3 years ago

9

A Transformer has a primary coil with 650 turns if the output voltage is 500 volts and an input voltage of 200 volts how many te

rms will be needed by the secondary coil???
260
555
60
1,625

1 answer:

maxonik [38]3 years ago

6 0

Answer:

1625

Explanation:

Ns/Np = Vs/Vp

Ns / 650 = 500/200

Ns = 2.5 x 650

Ns = 1625

You might be interested in

The density of blood is 2kg/m.convert to g/cm

sertanlavr [38]

Explanation:

if we convert it into g/cm it'll be

2000 grams

6 0

2 years ago

Which of the following best describe the particles in a liquid.

VashaNatasha [74]

A. fixed volume, changeable shape.

4 0

3 years ago

A child and sled with a combined mass of 48.8 kg slide down a frictionless hill that is 7.05 m high. If the sled starts from res

nexus9112 [7]

Answer:

Speed at bottom of the hill (v) = 11.74 m/s

Explanation:

Given:

Combined mass = 48.8 kg

Height h = 7.05 m

Find:

Speed at bottom of the hill (v)

Computation:

v² = 2gh

v = √2 x 9.8 x 7.05

v = √138.18

v = 11.74 m/s

Speed at bottom of the hill (v) = 11.74 m/s

7 0

3 years ago

A piece of string 2 meters and has a mass of 5g. On one end of the string hangs a 200 g mass. Find the tension of the string and

viktelen [127]

Explanation:

It is given that,

Length of the string, l = 2 m

Mass of the string, $m=5\ g=5\times 10^{-3}\ kg$

Hanged mass in the string, $m'=200\ g=0.2\ kg$

1. The tension in the string is given by :

$T=m'g$

$T=0.2\times 9.8$

T = 1.96 N

2. Velocity of the transverse wave in the string is given by :

$v=\sqrt{\dfrac{T}{M}}$

m = M/l

$v=\sqrt{\dfrac{Tl}{m}}$

$v=\sqrt{\dfrac{1.96\times 2}{5\times 10^{-3}}}$

v = 28 m/s

Hence, this is the required solution.

4 0

3 years ago

a hammer is swung so it exerts a 400 N force on a nail. if the hammer and nail are in contact for 0.35 seconds how much impulse

Anuta_ua [19.1K]

Answer:

140Ns

Explanation:

From Newton's 2nd law of motion

F = ma

F = m∆v/t

==> Ft = m∆v

impulse = Ft = 400 × 0.35 = 140Ns

8 0

2 years ago