Homework Answers
a) Using the right hand rule, Grab the wire and curl the fingers in the direction of magnetic field ( keeping track of given notation of magnetic field direction), the current in the wire is to the left.
b) As B = uoI / 2*pi*r
so greater the distance from wire, weaker will be the magnetic field. So, field is stronger at point 1.
c) the action of moving a coil or loop of wire through a magnetic field induces a voltage in the coil. A constant magnetic field won't induce any voltage. However, if we move a magnet back and forth near a coil, it will induce a voltage
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Do not worry about lab observations. Please help.
HOMEWORK FOR LAB 10 ELECTROMAGNETISM 1. In the...
Name Date Partners 2 HOMEWORK FOR LAB 10 ELECTROMAGNETISM 1. In the diagram on the right,...
Name Date Partners 2 HOMEWORK FOR LAB 10 ELECTROMAGNETISM 1. In the diagram on the right, a wire is car rying a current. The magnetic field above the wire is into the paper, and the mag- netic field below the wire is out of the paper, as shown. (An x indicates a field line into the paper and a indicates a field line out of the paper.) What is the direc tion of current flow in the wire? Explain your...
Homework for Lab 7: Electromagnetism In this sequence of questions, you'll diagram the sequence o...
For Question 1 and 2 because they are related please!
Homework for Lab 7: Electromagnetism In this sequence of questions, you'll diagram the sequence of events that causes the coil from the previous problem to rotate counterclockwise continuously (i.e., you're going to diagram how & why the motor that you built in lab works). 1. [4Pt] A loop with a current in it is near a magnet with its North Pole pointing up as shown. On the diagram, draw in:...
Please help me understand this question. If you could answer and explain I would really appreciat...
please help me understand this question.
If you could answer and explain I would really appreciate it. Thank
you!
or a galvanometer) is connected to a coil of wire. When there is no as the curremeter stays at the middle (zero current location) when coil current, indicator of th e current left to right ammeter scales to the right and when current flows righ oppositely it scales to the left. 15 points 1. If end is near the coil and...
Physics Pre-Lab Magnetism and Induction Name: UserID (e.g. abc123): Pre-Lab Questions: 1. The figures below indicate...
Physics Pre-Lab Magnetism and Induction Name: UserID (e.g. abc123): Pre-Lab Questions: 1. The figures below indicate currents running through a flat circular loop of wire that is nearly perpendicular to the plane of the page. In which of these figures will the magnetic field at the center of the loop point toward the bottom of the page? (The larger arrow is on the part of the loop closest to you.) 2. In the figures at right, a magnet is shown...
General Physics 2 w/o calc
Now suppose that the battery is removed and replaced with an ammeter. No current will flow through the wire because there is no energy source. Consider what will happen when a barmagnet is pushed toward the coil as shown in the figure below. When the coil "feels" the changing magnetic field caused by the approach of the bar magnet, it will thereby become energized; a current will begin to flow through it, and the ammeter will register that current. This...
W7. (a) Using sketches, explain how the values measured in Step P6 occurred. (b) Which observations...
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Magnetic induction lab: 5 questions A vertical bar magnet is dropped through the center of a...
Magnetic induction lab: 5 questions
A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading. At the moment just before the south pole passes through the loop, what is the direction of the induced current in the loop (viewed from above)? 2. Explain your answer to the previous question. 3. A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading....
5. A circular loop in the plane of the page lies in a 0.5T magnetic field...
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1. The stack of magnets works as one big bar magnet. Do the poles change when...
1. The stack of magnets works as one big bar magnet. Do the poles change when you divide the magnet into pieces? 2. In step 3 of the experiment, do both sides of the magnet attract the metal surface? Explain how a single magnet can repel the rest of the stack, but still stick to the other surface. 3. How does the magnet attract something that is originally non?magnetic? 1. Describe the direction of the compass needle as you moved...
Moving charges will produce a local magnetic field, but the reverse is also true a changing...
Moving charges will produce a local magnetic field, but the reverse is also true a changing magnetic field will similarly induce charges to move (ie. produce current). Consider a magnet moving into a coil of wire: A spinal coil of wire with many closely-spaced tums this is called a solenoid is connected to a micro-ammeter as shown in the diagram above. As the magnet moves into the coil, any induced current will be measured by the micro-ammeter. Question On the...
Name Date Partners 2 HOMEWORK FOR LAB 10 ELECTROMAGNETISM 1. In the diagram on the right, a wire is car rying a current. The magnetic field above the wire is into the paper, and the mag- netic field below the wire is out of the paper, as shown. (An x indicates a field line into the paper and a indicates a field line out of the paper.) What is the direc tion of current flow in the wire? Explain your...
For Question 1 and 2 because they are related please!
Homework for Lab 7: Electromagnetism In this sequence of questions, you'll diagram the sequence of events that causes the coil from the previous problem to rotate counterclockwise continuously (i.e., you're going to diagram how & why the motor that you built in lab works). 1. [4Pt] A loop with a current in it is near a magnet with its North Pole pointing up as shown. On the diagram, draw in:...
please help me understand this question.
If you could answer and explain I would really appreciate it. Thank
you!
or a galvanometer) is connected to a coil of wire. When there is no as the curremeter stays at the middle (zero current location) when coil current, indicator of th e current left to right ammeter scales to the right and when current flows righ oppositely it scales to the left. 15 points 1. If end is near the coil and...
Physics Pre-Lab Magnetism and Induction Name: UserID (e.g. abc123): Pre-Lab Questions: 1. The figures below indicate currents running through a flat circular loop of wire that is nearly perpendicular to the plane of the page. In which of these figures will the magnetic field at the center of the loop point toward the bottom of the page? (The larger arrow is on the part of the loop closest to you.) 2. In the figures at right, a magnet is shown...
W7. (a) Using sketches, explain how the values measured in Step P6 occurred. (b) Which observations are indicated by Lenz's Law and which by Faraday's Law? Use the appropriate formulae and sketches. (c) Explain which law dictates the different voltage values attained at different speeds and which law governs the different signs of the voltages. 0.0037 V -0.0062 V 0.0462 V 0.1236 V 0.0105 V 0.0015 V d) e) fast e) slow P6. Turn the voltage on the frequency generator...
Magnetic induction lab: 5 questions
A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading. At the moment just before the south pole passes through the loop, what is the direction of the induced current in the loop (viewed from above)? 2. Explain your answer to the previous question. 3. A vertical bar magnet is dropped through the center of a horizontal loop of wire, with its south pole leading....
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Moving charges will produce a local magnetic field, but the reverse is also true a changing magnetic field will similarly induce charges to move (ie. produce current). Consider a magnet moving into a coil of wire: A spinal coil of wire with many closely-spaced tums this is called a solenoid is connected to a micro-ammeter as shown in the diagram above. As the magnet moves into the coil, any induced current will be measured by the micro-ammeter. Question On the...
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