1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Colt1911 [192]
3 years ago
8

The secondary coil of a neon sign transformer provides 7500 V at 0.01 A. The primary coil operates on 120 V. What is the input c

urrent in the primary coil of this transformer assuming that no energy is lost in the transformer?
Physics
1 answer:
nikitadnepr [17]3 years ago
8 0

Answer:

0.625 A

Explanation:

Vs = 7500 V, Is = 0.01 A

Vp = 120 V

Let the primary current be Ip.

As the transformer is ideal, so input power is equal to the output power

Vp x Ip = Vs x Is

120 x Ip = 7500 x 0.01

Ip = 0.625 A

You might be interested in
Ferdinand the frog is hopping from lily pad to lily pad in search of a good fly
loris [4]

Answer: 36.86\°

Explanation:

According to the described situation we have the following data:

Horizontal distance between lily pads: d=2.4 m

Ferdinand's initial velocity: V_{o}=5 m/s

Time it takes a jump: t=0.6 s

We need to find the angle \theta at which Ferdinand jumps.

In order to do this, we first have to find the <u>horizontal component (or x-component)</u> of this initial velocity. Since we are dealing with parabolic movement, where velocity has x-component and y-component, and in this case we will choose the x-component to find the angle:

V_{x}=\frac{d}{t} (1)

V_{x}=\frac{2.4 m}{0.6 s} (2)

V_{x}=4 m/s (3)

On the other hand, the x-component of the velocity is expressed as:

V_{x}=V_{o}cos\theta (4)

Substituting (3) in (4):

4 m/s=5 m/s cos\theta (5)

Clearing \theta:

\theta=cos^{-1} (\frac{4 m/s}{5 m/s})

\theta=36.86\° This is the angle at which Ferdinand the frog jumps between lily pads

4 0
3 years ago
Which one will it be
liq [111]

Answer:

none

Explanation:

it's to high up to be affected by the gravity

3 0
2 years ago
Read 2 more answers
A 5-mm-thick stainless steel strip (k = 21 W/m·K, rho = 8000 kg/m3, and cp = 570 J/kg·K) is being heat treated as it moves throu
Snezhnost [94]

Answer:

1170 Kelvin/meter

Explanation:

See attached pictures.

8 0
3 years ago
Read 2 more answers
What produces magnetic fields?
Darina [25.2K]
B. moving electric charges, hope this helps :)
6 0
2 years ago
The primary source of evidence proposed by many scientist to support the theory of an ancient earth is ____ dating.
vova2212 [387]
It depends on your definition of “ancient.” Radiometric dating using Carbon-14 can reliably date back to about 50,000 years, uranium-lead or lead-lead dating can date back multiple millions, potassium-argon dating can reach 1.5 billion, and rubidium-strontium can reach 50 billion (nearly 4x the age of the universe). It depends on the context in which this question is being asked.
7 0
3 years ago
Other questions:
  • normally a slower moving person would develop less power then a faster moving person. describe a situation in which a slower mov
    14·1 answer
  • when you hold a warm bowl of soup the temperature of the palms of your hands increases this is an example of
    7·1 answer
  • -A: Find the force that must be exerted on the rod to maintain a constant current of 0.156 A in the resistor? (In mN)
    15·1 answer
  • What is the name of a scientist that studies the Movment of living things?
    8·1 answer
  • Marta, Cato, and Juan plan a skit to illustrate one of the methods of charging. Marta and Cato are walking together. Each has on
    8·1 answer
  • What unit is used to measure the period of a wave
    14·1 answer
  • TheE-field strength is 50,000 N/C inside a parallel plate capacitor with 2.0 mmspacing. A proton is released from rest at the po
    10·1 answer
  • A kΩ resistor is connected to an AC voltage source with an rms voltage of V. (a) What is the maximum potential difference across
    14·1 answer
  • How are interference patterns made?
    10·1 answer
  • Solving Problems: Using Ohm's law
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!