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
melamori03 [73]
2 years ago
14

4. A lamp is connected to a 230 V mains supply. A current of 4 A flows through the

Physics
2 answers:
White raven [17]2 years ago
4 0

Explanation:Example

A 500 W television set is switched on for 4 hours. Calculate the energy transferred.

500 W = 500/1000 = 0.5 kW

energy transferred = power × time

= 0.5 × 4

= 2 kWh

sasho [114]2 years ago
3 0

Answer:

I= Q ÷ T

Explanation:

I: Current measured in amperes

Q: Charge flow measured in coulombs

T: Time measured in seconds

I hope you find this helpful.

You might be interested in
The storm surge of a hurricane can cause
BabaBlast [244]

Answer:

it can cause huricans and flooding

Explanation:

Storm surge is the rising of the sea level due to the low pressure, high winds, and high waves associated with a hurricane as it makes landfall. The storm surge can cause significant flooding and cost people their lives if they're caught unexpected

7 0
3 years ago
Read 2 more answers
Out of aluminum,copper,steel,and glass.Which material do you think will be the best thermal conductor?
Nastasia [14]
I believe it is copper

6 0
3 years ago
During a chemical reaction, increasing the temperature often
Nadya [2.5K]

Answer:c

Explanation:

the rate of reaction increases as temperature increases

5 0
3 years ago
How is momentum conserved in a Newton's cradle when one steel ball hits the other?
lora16 [44]

Answer:Both balls have momentum to start,and they share it after collision

Explanation:both balls have momentum to start and they share it after collision

7 0
3 years ago
Read 2 more answers
Scientists in a test lab are testing the hardness of a surface before constructing a building. Calculations indicate that the en
Over [174]
It depends on what that "certain amount" is.
7 0
3 years ago
Other questions:
  • A 10.0-cm-diameter and a 20.0-cm-diameter charged ring are arranged concentrically (so they share the same axis). Assume both ar
    6·1 answer
  • Find the smallest positive phase of the mass on a spring that undergoes simple harmonic motion if at time t = 0.1 s the position
    12·1 answer
  • On the report evaluation, the teacher wrote, "Good idea, but you
    9·1 answer
  • A researcher is interested in exploring the effects of exposure to ultraviolet light on people’s emotional state. He divides his
    8·1 answer
  • Two identical trucks have mass 5400 kg when empty, and the maximum permissible load for each is 8000 kg. The first truck, carryi
    10·1 answer
  • Megan tries to open a door, but she is unable to push at a right angle to the door. So, she pushes the door at an angle of 55º f
    10·1 answer
  • Um corpo de massa igual a 2kg move-se com velocidade constante num plano horizontal sem atrito, conforme a figura. Em seguida, e
    5·1 answer
  • What rate do things fall to Earth?
    14·1 answer
  • 4.- Una vagoneta de 1000 kg de peso parte del reposo en el punto 1 y desciende, sin rozamiento, por la vía indicada en la figura
    7·1 answer
  • An oil droplet is levitated and held at rest in a region where the electric field is 1.4x104 N/C directed vertically downwards.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!