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
weqwewe [10]
3 years ago
8

Consider a loop of wire with a resistor. In the same plane, (with switch S closed) a long wire has a current I flowing from left

to right. R I S If switch S is closed for a long period of time, and then suddenly opened, what is the direction of the induced current through R as the current I rapidly decreases
Physics
1 answer:
Ulleksa [173]3 years ago
6 0

Solution :

The given figure is a loop of a wire with a resistor.

When the switch S is closed for long time and is suddenly opened, the direction of the induced current can be find out by using the rule of right hand screw. According to the right hand screw rule, the direction of the magnetic field at the loop is in the direction that points outwards. The strength of the current rapidly decreases as it is switch off and the magnetic flux that is linked with the loop wire will also decrease.

According to the Lenz's law, the direction of the induced current must be such $\text{that it opposes}$ the decrease in the magnetic flux.  It means the direction of the magnetic field must be outwards and also normal to the plane of the screen. The direction of the induced anti clockwise or from right to left in the resistance.

You might be interested in
A physics student drops a rock from a 55m cliff. How long does it take to hit the ground?
lara [203]

Answer: 9.9 seconds

Explanation:

that's just how long it takes

6 0
3 years ago
Read 2 more answers
100 points!!! Please help!!!
Greeley [361]

Answer:

41°

Explanation:

Kinetic energy at bottom = potential energy at top

½ mv² = mgh

½ v² = gh

h = v²/(2g)

h = (2.4 m/s)² / (2 × 9.8 m/s²)

h = 0.294 m

The pendulum rises to a height of  above the bottom.  To determine the angle, we need to use trigonometry (see attached diagram).

L − h = L cos θ

cos θ = (L − h) / L

cos θ = (1.2 − 0.294) / 1.2

θ = 41.0°

Rounded to two significant figures, the pendulum makes a maximum angle of 41° with the vertical.

7 0
3 years ago
what is the distance a train can travel if its speed is 20mph over a time of 5.6 hours (show all 3 steps)
erik [133]

Answer:

distance = 112 miles

Explanation:

its 12 miles every 0.6 in a hour

8 0
2 years ago
10)A car is moving from rest and attained a velocity of 80 m/s. Calculate the
Mashcka [7]

Explanation:

the velocity graph of a ball mass 20mg moving along a straight line

5 0
3 years ago
Read 2 more answers
Which of Kepler's laws helps you compare the velocities of different planets?
Rasek [7]

see this and you

try to understand

5 0
2 years ago
Other questions:
  • The phospholipid molecule has two parts, the polar end and the bipolar end.<br> True or false
    14·1 answer
  • Gravity____?<br> Help please
    12·2 answers
  • Given the units of force, write a simple equation relating a constant force Fexerted on an object, an interval of time t during
    7·1 answer
  • What is the particle arrangement in a liquid
    11·1 answer
  • 8. A roller coaster's velocity at the top of a hill is 10 m/s. It reaches the bottom of the hill with a
    12·1 answer
  • 3. What can you infer about an ion that has a positive charge?
    10·1 answer
  • A disk with a rotational inertia of 2.5 kg-m2 and a radius 1.1 m rotates on a frictionless fixed axis perpendicular to the disk
    14·1 answer
  • The speed of a car changes from 15 m/s to 55 m/s in 10 sec. find the Acceleration​
    10·2 answers
  • PLEASE HELP ME!!!!!!!!!
    13·1 answer
  • Please Help!<br><br><br>What is inertia? What does inertia depend on?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!