Homework Answers
Solution- the current is going up
According to lenz law an induced current always flows in a direction such that it opposes the change which produced it.
Here the N pole of the magnet is moving away from the coil therefore to oppose the the motion upper end of the coil becomes S pole and the lower end becomes N pole thus the induced current flow (by right hand thumb rule) through the resistor is upward
Add Answer to:
A magnet is moving away from a stationary coil with speed v, as shown in the...
What is the direction of the induced magnetic field in the coil when the bar magnet is moving...
A coil is suspended around an axis which is colinear with the axis of a bar magnet.The coil is connected to a resistor with ends labeled “a” and “b”. The bar magnet moves from left to right with North and South poles labeled as in the figure. UseLenz’s law to answer the following question concerning the direction of induced currents and magnetic fields.What is the direction of the induced magnetic field in the coil when the bar magnet ismoving from...
A Magnet and a Coil When a magnet is plunged into a coil at speed u,...
A Magnet and a Coil When a magnet is plunged into a coil at speed u, as shown in the figure, a voltage is induced in the coil and a current flows in the circuit (Figure 1) Part B The same magnetis plunged into a coil that has twice the number of turns as before. The magnet is shown before it enters the coil in the figure (Figure 2 the magnetis again the induced current in the coil is the speed of
(c) A magnet moves down through a coil as shown in Figure 2. Figure 2 i. Sketch and explain what ...
(c) A magnet moves down through a coil as shown in Figure 2. Figure 2 i. Sketch and explain what the direction of the induced (2 marks) (2 marks) Explain what's need to be done in order to generate a (2 marks) (2 marks) current should be. ii. What would happen to the emf induced if the motion of the magnet is reversed. larger emf. iv. Would there be any emf induced if the magnet stops moving?
(c) A magnet...
When a magnet is plunged into a coil at speed nu, as shown in the figure,...
When a magnet is plunged into a coil at speed nu, as shown in the figure, a voltage is induced in the coil and a current flows in the circuit. If the speed of the magnet is doubled, the induced voltage is .
A coil of wire is connected to a galvanometer as shown. A magnet is held stationary...
A coil of wire is connected to a galvanometer as shown. A magnet is held stationary above the coil. Under what circumstances will the galvanometer indicate a current?
A bar magnet induces a current in an N-turn coil as the magnet moves closer to...
A bar magnet induces a current in an N-turn coil as the
magnet moves closer to it as shown in (Figure 1) . The coil's
radius is R m, and the average induced emf across the bulb
during the time interval is ? V.
A. Find the rate of change of magnetic field
Express your answer in terms of the variables
?,
N,
R, and appropriate
constants.
Part B
Determine the induced current. Assume that R0 is the
resistance of...
Pre-Lab Exercise N A bar magnet is moved relative to a coil as shown in the...
Pre-Lab Exercise N A bar magnet is moved relative to a coil as shown in the diagram. Which direction will the induced current flow if: 1. The magnet is moving into the coil 2. The magnet is moving out of the coil 3. The coil rotates clockwise until it makes a 45° angle with the magnet 3 חרחרוחב -
In the figure, a bar magnet moves away from the solenoid. The induced current through the...
In the figure, a bar magnet moves
away from the solenoid. The induced current through the resistor
R is
A) from a to b.
B) from b to a.
C) There is no induced current through the resistor.
A solenoid is wound as shown in the figure. a. Is there an induced current as...
A solenoid is wound as shown in the figure.
a. Is there an induced current as magnet 1 is moved away from the
solenoid? If so, what is the current direction through resistor
R?
b. Is there an induced current as magnet 2 is moved away from the
solenoid? If so, what is the current direction through resistor
R?
S 2 N N SI CCCCCCCC min 1
A bar magnet is moving toward a solenoid of wire as shown at a constant speed...
A bar magnet is moving toward a solenoid of wire as shown at a constant speed v. The ends of the wire are connected across a light bulb as shown. The magnet flies through the solenoid and continues moving to the left. Which entry in the table below correctly indicates the behavior of the light bulb.as the magnet is heading toward the solenoid and as it is heading away from the solenoid? Hint: The brightness of the light bulb is...
A Magnet and a Coil When a magnet is plunged into a coil at speed u, as shown in the figure, a voltage is induced in the coil and a current flows in the circuit (Figure 1) Part B The same magnetis plunged into a coil that has twice the number of turns as before. The magnet is shown before it enters the coil in the figure (Figure 2 the magnetis again the induced current in the coil is the speed of
(c) A magnet moves down through a coil as shown in Figure 2. Figure 2 i. Sketch and explain what the direction of the induced (2 marks) (2 marks) Explain what's need to be done in order to generate a (2 marks) (2 marks) current should be. ii. What would happen to the emf induced if the motion of the magnet is reversed. larger emf. iv. Would there be any emf induced if the magnet stops moving?
(c) A magnet...
When a magnet is plunged into a coil at speed nu, as shown in the figure, a voltage is induced in the coil and a current flows in the circuit. If the speed of the magnet is doubled, the induced voltage is .
A bar magnet induces a current in an N-turn coil as the
magnet moves closer to it as shown in (Figure 1) . The coil's
radius is R m, and the average induced emf across the bulb
during the time interval is ? V.
A. Find the rate of change of magnetic field
Express your answer in terms of the variables
?,
N,
R, and appropriate
constants.
Part B
Determine the induced current. Assume that R0 is the
resistance of...
Pre-Lab Exercise N A bar magnet is moved relative to a coil as shown in the diagram. Which direction will the induced current flow if: 1. The magnet is moving into the coil 2. The magnet is moving out of the coil 3. The coil rotates clockwise until it makes a 45° angle with the magnet 3 חרחרוחב -
In the figure, a bar magnet moves
away from the solenoid. The induced current through the resistor
R is
A) from a to b.
B) from b to a.
C) There is no induced current through the resistor.
A solenoid is wound as shown in the figure.
a. Is there an induced current as magnet 1 is moved away from the
solenoid? If so, what is the current direction through resistor
R?
b. Is there an induced current as magnet 2 is moved away from the
solenoid? If so, what is the current direction through resistor
R?
S 2 N N SI CCCCCCCC min 1
A bar magnet is moving toward a solenoid of wire as shown at a constant speed v. The ends of the wire are connected across a light bulb as shown. The magnet flies through the solenoid and continues moving to the left. Which entry in the table below correctly indicates the behavior of the light bulb.as the magnet is heading toward the solenoid and as it is heading away from the solenoid? Hint: The brightness of the light bulb is...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago