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
Artyom0805 [142]
3 years ago
8

A bar magnet is dropped from above and falls through the loop of wire. The north pole of the bar magnet points downward towards

the page as it falls. Which statement is correct?a. The current in the loop always flows in a clockwise direction. b·The current in the loop always flows in a counterclockwise direction. c. The current in the loop flows first in a clockwise, then in a counterclockwise direction. d. The current in the loop flows first in a counterclockwise, then in a clockwise direction. e. No current flows in the loop because both ends of the magnet move through the loop.
Physics
1 answer:
8_murik_8 [283]3 years ago
3 0

Answer:

<em>b. The current in the loop always flows in a counterclockwise direction.</em>

<em></em>

Explanation:

When a magnet falls through a loop of wire, it induces an induced current on the loop of wire. This induced current is due to the motion of the magnet through the loop, which cause a change in the flux linkage of the magnet. According to Lenz law, the induced current acts in such a way as to repel the force or action that produces it. For this magnet, the only opposition possible is to stop its fall by inducing a like pole on the wire loop to repel its motion down. An induced current that flows counterclockwise in the wire loop has a polarity that is equivalent to a north pole on a magnet, and this will try to repel the motion of the magnet through the coil. Also, when the magnet goes pass the wire loop, this induced north pole will try to attract the south end of the magnet, all in a bid to stop its motion downwards.

You might be interested in
Would you be doing more work going up the stairs twice as fast?
SSSSS [86.1K]
If you use the stairs at normal speed, you will survive longer, and go up higher.
When going up the stairs twice as fast, you lose energy more quickly, but height would remain the same.
7 0
3 years ago
Read 2 more answers
The idea that large fibers in the sensory nerves can prevent impulses from reaching the brain and thus prevent the sensation of
allochka39001 [22]

Answer:

Gate control theory of pain

Explanation:

The gate control theory of pain sates that non-painful input closes the nerve gates to painful input, which prevents pain sensation from traveling to the central nervous system (brain).

Therefore, the idea that large fibers in the sensory nerves can prevent impulses from reaching the brain and thus prevent the sensation of pain is part of the gate control theory of pain.

4 0
3 years ago
Not Physics!!! Philosophy!!!
irina1246 [14]

Answer:

The ideas resemble their causes are the ideas of: Primary qualities: texture, number, size, shape, motion.

Explanation:

5 0
4 years ago
If a truck is heading south at a velocity of 90m/s for 10 seconds how far did it travel?
RoseWind [281]

Answer:

Truck will be at a distance of 720 m

Explanation:

Speed of the truck is given as 90 m/sec

Time for which truck travel t = 10 seconds

We have to find the distance that how much truck travel in 8 sec with speed of 90 m/sec

We know that distance is given by distance=velocity\times time

So distance traveled by truck in 8 sec will be equal to =90\times 8 =720m

So truck will be at a distance of 720 m

3 0
4 years ago
What is the mode of heat transfer from drying of wet hot plate in atmosphere​
SashulF [63]

Answer:

It's convection

Explanation:

As the hot place transfers heat to the liquid substance, it becomes less dense and rises to the surface given rise for cooler molecules directly above to fall and so undergoes the same circle. In the process the less dense particles are so light that it's swayed into the atmosphere. In the process drying is ensued.

4 0
3 years ago
Other questions:
  • Why does an object in motion stay in motion unless acted on by an unbalanced force?
    7·2 answers
  • What color will a star be with a surface temperature of 5000–6000 K?
    15·2 answers
  • If a 70kg swimmer pushes off a pool wall with a force of 250N. What is her acceleration?
    11·2 answers
  • A shopper pushes a 7.32 kg grocery cart
    5·1 answer
  • Fast-moving glaciers that can move up to 6 kilometers per year
    15·2 answers
  • Which of the following describes the way heat is transferred in a geyser?
    7·1 answer
  • A 0.050-kg lump of clay moving horizontally at 12 m/s strikes and sticks to a stationary 0.15-kg cart that can move on a frictio
    15·1 answer
  • Scientists have learned about the structure of Earth's interior by
    15·2 answers
  • A slender rod is 80.0 cm long and has mass 0.390 kg . A small 0.0200-kg sphere is welded to one end of the rod, and a small 0.05
    11·1 answer
  • Did sans from Undertale really die or was he just trolling
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!