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
DedPeter [7]
3 years ago
13

When it is necessary to switch on an electrical current from a remote location, which devices could be used?

Physics
2 answers:
wolverine [178]3 years ago
4 0
A classic example is a remote control. The mechanical force exerted by pressing the switches produces electric current (often times creating the electrical continuity of contacts when switch is pressed) within the remote control device allowing it to send radio signals to the receiver.
katen-ka-za [31]3 years ago
4 0

Answer: Remote control.

Explanation: The most classical example of a device that is used with this objective is the remote control (or clicker).

While the first remote controls used ultrasonic pulses, nowadays they use infrared radiation (there are other types, but this is the most common one), this is what allows them to work from distance. There are "codes" in the radiation that are read by a "camera" and are interpreted for things like turn on the power (and other things, maybe control a drone, change the channel, etc).

You might be interested in
WHO CAN ANSWER BOTH 14 and 15 WITH UNITS ILL PUT U AS BRAINLEST!
saw5 [17]

Answer:

14. V=8

15. V=40

Explanation:

simplifying:

14. 4 32/8

V=8

15. 20 1000/50

V=40

4 0
3 years ago
Maria makes a graphic organizer to compare open, closed, and short circuits. She adds the labels shown.
Lina20 [59]
The Answer is Label 1:Y Label 2: W
7 0
3 years ago
Read 2 more answers
A mom pushes her 19.3 kg daughter on the swing. If she gives her an initial velocity of 7.5 m/s at the bottom of the swing and t
kiruha [24]

Answer:

3.17333333333? I hope I get it right

Explanation:

..................hello

3 0
3 years ago
A sled travels 15 meters down a slope inclined at 30 degrees with a horizontal. What is the horizontal displacement of the sled?
Arte-miy333 [17]

Length of the slope is given as

L = 15 m

also the inclination is given as

\theta = 30 degree

now the horizontal displacement is let say "x"

now from geometry we can say

\frac{x}{L} = cos30

x = L cos30

now substitute all values in it

x = 15 * cos30

x = 12.99 m

<em>so it will displace horizontally by 12.99 m</em>

6 0
3 years ago
Walt ran 5 km in 25 minutes going east to what was his average velocity
goldenfox [79]

distance d = 5 km = 5 x 1000 m = 5000 m

time taken = 25 minute = 25 x 60 sec = 1500 sec

average velocity V = d/t

V = 5000/1500

V = 3.33 m/s towards east

3 0
3 years ago
Read 2 more answers
Other questions:
  • A 10 kg box rests on the ground. What is the weight of the box? __ N
    10·2 answers
  • "Response to stimulus" refers to
    7·1 answer
  • Which atom is most likely to form a metallic bond ?
    13·1 answer
  • Which part of the eye holds eye color?
    9·1 answer
  • A 40 g ball rolls around a 30 cm -diameter L-shaped track, shown in the figure, (Figure 1)at 60 rpm . What is the magnitude of t
    10·1 answer
  • Do not have definite size and always take the shape of their container,
    5·2 answers
  • What are factor affecting resistance?​
    9·1 answer
  • The rod connected halfway along the 0.660 m radius of a wheel exerts a 2.27 × 10^5 N force. How large is the maximum torque?
    8·1 answer
  • How are electrical energy, thermal energy, and mechanical energy related?
    7·1 answer
  • Under the Big Top elephant. Ella [2500 kg]. is attracted to Phant, the 3,000 kg elephant. They are separated by 8 m. What is the
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!