Three bulbs The figure is a top view of a circuit containing three identical light bulbs (the rest of the circuit including the batteries is not shown). The direction of the North pole is toward the right. The connecting wires are made of copper. North B. (a) The compass is placed on top of the wire, and it deflects 20 degrees away from north as shown (the wire is underneath the compass). Which of the following statements about the magnetic field caused by the electrons moving at location P, are true? There may be more than one. O Electrons are moving to the left. O At the location of the compass, the magnetic field due to the conventional current points toward the top of the page. O At the location of the compass, the magnetic field due to the conventional current points toward the bottom of the page. O Electrons are moving to the right. (b) In the steady state, 5 x 101 electrons pass location P, every second. How many electrons pass location P2 every second? (c) Which relation describes the relative brightnesses of bulbs B, B2, and B3? O B2 > B3 > Bị O Bz = B3 > 8Ị O Bz < B3 < Bị O B, = B2 = B3 O B; > B2 = B3
Three bulbs The figure is a top view of a circuit containing three identical light bulbs (the rest of the circuit including the batteries is not shown). The direction of the North pole is toward the right. The connecting wires are made of copper. North B. (a) The compass is placed on top of the wire, and it deflects 20 degrees away from north as shown (the wire is underneath the compass). Which of the following statements about the magnetic field caused by the electrons moving at location P, are true? There may be more than one. O Electrons are moving to the left. O At the location of the compass, the magnetic field due to the conventional current points toward the top of the page. O At the location of the compass, the magnetic field due to the conventional current points toward the bottom of the page. O Electrons are moving to the right. (b) In the steady state, 5 x 101 electrons pass location P, every second. How many electrons pass location P2 every second? (c) Which relation describes the relative brightnesses of bulbs B, B2, and B3? O B2 > B3 > Bị O Bz = B3 > 8Ị O Bz < B3 < Bị O B, = B2 = B3 O B; > B2 = B3
Related questions
Question
answer all parts of the question (A-D)
Transcribed Image Text:Three bulbs
The figure is a top view of a circuit containing three identical light bulbs (the rest of the circuit including the batteries is not shown). The direction of the North pole is toward the right. The connecting wires are made of copper.
North
(a) The compass is placed on top of the wire, and it deflects 20 degrees away from north as shown (the wire is underneath the compass). Which of the following statements about the magnetic field caused by the electrons moving at location P, are true?
There may be more than one.
O Electrons are moving to the left.
O At the location of the compass, the magnetic field due to the conventional current points toward the top of the page.
O At the location of the compass, the magnetic field due to the conventional current points toward the bottom of the page.
O Electrons are moving to the right.
(b) In the steady state, 5 x 1018 electrons pass location P, every second. How many electrons pass location P, every second?
(c) Which relation describes the relative brightnesses of bulbs B1, B2, and B3?
O B2 > B3 > B1
O B2 = B3 > B1
O B2 < B3 < B1
O B, = B2 = B3
O B, > B2 = B3
(d) There are 6.3 x 1028 mobile electrons per cubic meter in tungsten. The cross-sectional area of the tungsten filament in bulb B1 is 0.01 mm2 (1 mm? = 1 x 10-6 m2). The electron mobility in hot tungsten is 1.2 x 10-4 (m/s)/(N/C). Calculate the
magnitude of the electric field inside the tungsten filament in bulb B1.
JĒJ =
V/m
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
