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
Maslowich
2 years ago
10

An ammeter with a resistance of 5.0 ohm is connected in series with a 3.0V cell and a lamp rated at 300 mA, 3V. Calculate the cu

rrent that the ammeter will measure
Physics
1 answer:
Alex2 years ago
3 0

Answer:

I = 0.2 A

Explanation:

Lamp is rated at 300 mA

I_lamp = 0.3 A

Voltage is; V = 3V

Thus; Resistance is given by;

R = V/I

R = 3/0.3

R = 10 ohms

Now, since the ammeter of 5 ohms is connected in series with the lamp. Thus equivalent resistance;

R_eq = 10 + 5

R_eq = 15 ohms

Ammeter current will be;

I = V/R_eq

I = 3/15

I = 0.2 A

You might be interested in
Which of these best explains why people on Earth cannot see the entire shape of the Milky Way
BartSMP [9]
I believe the answer is A.

Since the Earth is in the Milky Way and not outside it, we cannot see the exact shape of it. Physicists have been able to track and graph the movements of the planets accurately for thousands of years, but that does not mean we know the shape of the entire solar system.<span />
5 0
3 years ago
Explain the benefits of understanding sound waves properties in real life.
Tems11 [23]

Answer:

The vibrations from sound waves cause our ears to send signals to our brains to create sound. The speed of sound waves will determine the sound's pitch, or how high or low something sounds. Sound waves are important because they allow us to hear important messages and emergency signals to protect ourselves.

Explanation:

I hope this helps :)

4 0
2 years ago
Place your hands on the side of your head, with your palms facing forward. This should look like you have given yourself large e
nirvana33 [79]

Answer:

the solar system

Explanation:

7 0
3 years ago
In what two ways can we increase the potential difference?
vredina [299]
Yes I hope this helps
4 0
3 years ago
Which best describes most covalent compounds?<br> O soft<br> O brittle<br> 3<br> O cold<br> O warm
LUCKY_DIMON [66]

Answer: Brittle

Explanation:

took the test and I chose Soft, Soft is the wrong answer don't choose it. The CORRECT ANSWER IS BRITTLE

7 0
3 years ago
Other questions:
  • When demand for electric power is high, power company sometimes reduced the voltage, thereby producing a "brown-out." What is be
    7·1 answer
  • a. Convert 21.0 cm to inches. Show your dimensional analysis setup. b. Convert 29.7 cm to inches. Show your dimensional analysis
    11·1 answer
  • A wave has a wavelength of 6 mm and a frequency of 9 hertz. What is its speed? what is the answer and units?
    15·1 answer
  • According to the law of reflection, _____ in the diagram below.
    13·1 answer
  • What is the wavelength of a sound wave with a frequency of 50 hz? (speed of sound is 342 m/s)?
    5·1 answer
  • Covalent Bonds usually bond atoms of which type of elements together?
    6·1 answer
  • Can someone please help me with part a and d
    5·2 answers
  • ***PLEASE HELP*** (you don’t have to answer all but at least 1 or 2 answers would help!!!)
    7·1 answer
  • Please select ALL THAT APPLY
    13·1 answer
  • On a position vs. time graph for an object, a horizontal line segment indicates that the object is(1 point)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!