9 - Induction - Physics 8B 9 Induction rev 4.0 9 Induction...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 8B 9 – Induction rev 4.0 9 – Induction 1. A bar magnet is near a solenoid as shown. Q: For each of the situations a) - h) below, state whether the current flows from left to right, from right to left, or that there is no current flowing through the ammeter, and explain your reasoning. a) The north pole of the magnet is moved (right) towards the solenoid. b) The magnet is held stationary in the solenoid. c) The north pole of the magnet is removed (left) from the solenoid. d) The magnet is flipped and the south pole of the magnet is moved (right) towards the solenoid. e) The south pole of the magnet is removed (left) from the solenoid. f) The north pole is held stationary as above, and the solenoid is moved to the right. g) The north pole is held stationary and the solenoid is moved to the left. h) Both the magnet and the solenoid are moved to the right with the same speed. S N Ammeter
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Physics 8B 9 – Induction rev 4.0 2. A bar magnet is dropped through a loop of wire as shown. Looking at the loop from above, a) Q: What is the direction of the current as the magnet enters the loop from the top? b) Q: What is the direction of the current as the magnet as it leaves the loop from the bottom? c) Q: What is the direction of the current at the instant it is in the middle (half above and half below 3. A small square loop is next to a current carrying wire as shown. Q: For each of the situations a) - d) below, state whether the current induced in the loop is clockwise, counterclockwise, or no current is induced. Explain your reasoning. a) The current in the wire is increased. b) The loop is moved up the page. c) The loop is moved to the right. d) The loop is rotated clockwise ¼ turn. (see side view, but answer for top view) S N I I Side view for d) Rotate loop this way
Background image of page 2
Physics 8B 9 – Induction rev 4.0 4. A conducting rod makes contact with the metal rails which are a distance L = 50 cm apart in a uniform magnetic field B = 1.0 T into the page as shown. There is a resistor in the circuit R = 4.0 . An applied force is moving the rod to the left at a constant velocity of v = 8.0 m/s. x
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 10

9 - Induction - Physics 8B 9 Induction rev 4.0 9 Induction...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online