stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Electricity & Magnetism L1 Flashcards | StudBud
Explore
/
Electricity & Magnetism L1
Electricity & Magnetism L1
27 terms
·
StudBud Administration
·
69 plays
Imported from external platform
Flashcards
27 cards
F
Practice quiz
P
Host live
L
Questions
27
Answers
1
What is the order of events?
Switchon, I flows, coil magnetsed, Febolt attracts to S pole
Switchon, I flows, coil magnetsed, Febolt attracts to N pole
Switch on, I flows, coil magnetsed, N pole attracts Fe bolt
Switch on, I flows, coil magnetsed, S pole attracts Fe bolt
2
The compass at the arrow points in what direction?
Directly south
Directly north
South but more towards magnet A
South but more towards magnet B
3
If A is (+) what is the charge at C & D
?
Both (+)
C is (+) & D is (-)
Both (-)
C is (-) & D is (+)
4
The circled area represents the charged area. Which image(s) is/are likely to be a conductor?
top image
bottom image
neither
both images
5
The bottom pole is?
The south pole with current entering the coil
The north pole with current entering the coil
The north pole with current leaving the coil
The south pole with current leaving the coil
6
Total R on WXYZ pathway and voltage at V
4
5 Ὡ & 22 V
5 Ὡ & 12 V
6 Ὡ & 22 V
6 Ὡ & 12 V
7
Current is ......
current travelling away, magnetic field lines clockwise
x marks the spot
current travelling away, magnetic field lines anticlockwise
current travelling towards, magnetic fieldlines clockwise
8
Name the last component
Resistor
Variable resistor
Ammeter
Fuse
9
The poles at U and Z are ....
U South & Z South
U South & Z North
U North & Z North
U North & Z South
10
I = ?
2.2 A
0.8 A
1.2 A
2 A
11
A & B have both been rubbed individually by clothes, when brought together what happens?
both rods go in the same direction
both rods attract to each other
both rods stay still
both rods repel each other
12
The readings at V
2
& A
2
are....
V2 = 4 V & A2 = 1 A
V2 = 8 V & A2 = 1 A
V2 = 8 V & A2 = 2 A
V2 = 4 V & A2 = 2 A
13
If V
1
is 6V and assuming equal resistance on the bulbs what is the voltage on V
3
7.5 V
3 V
1.5 V
6 V
14
When happens at the arrow
?
The (+) charges on the leaf repel the (+) charge on stem
charges repel the (-) leaf from the (+) stem
charges repel the (+) leaf from the (-) stem
The (-) charges on the leaf repel the (-) charge on stem
15
V
1
=10 V, V
2
= 2 V, A
1
=2 A, resistance for resistor & bulb is the same, resistor reading is ....
5Ὠ
8Ὠ
16Ὠ
4Ὠ
16
The missing spaces are.....
I1 + I3 & V1 + Vps
I1 + I3 & Vps + V2
I1 + I3 & V1 + V2
I2 & V2
17
The compass at C points in what direction?
towards S pole
away from N pole
away from S pole
towards N pole
18
The reading on the 5 V range scale is.......
0.7 V
3.5 V
0.8 V
4 V
19
The bottom of the coil shows what type of pattern?
South pole & compass needle pointing away from it
South pole & compass needle pointing towards it
North pole & compass needle pointing towards it
North pole & compass needle pointing away from it
20
Why does old harry up there have hair sticking up like that?
opposite charge has spread up to his hair & charge repels
the same charge has spread up to his hair & charge repels
different charge has spread up to his hair & charge repels
opposite charge has gone to his hair & charge attracts
21
When these two objects come close together, what happens
next ?
protons move over, the more (+) paper repels (+) ruler
(-) move over, the more (+) paper repels (+) ruler
(+) charges attract to (-) charges and objects attract
(-) move over, the more (-) paper repels (+) ruler
22
If V
1
is 6V and assuming equal resistance on the bulbs what is the voltage on V
3
6 V
3 V
7.5 V
1.5 V
23
These two poles show what pattern?
two S poles attracting
two N poles attracting
two S poles repelling
two N poles repelling
24
Which direction does the compass point?
west
north
south
east
25
I
SIREN
= ? & P
CRANE
= ?
I = V/R = 12/15 = 0.8 A P=VI = 12x1.2 = 14.4 W
I = V/R = 6/40 = 0.15 A P=VI = 6x0.6 = 3.6 W
I = V/R = 6/15 = 0.4 A P=VI = 6x0.6 = 3.6 W
I = V/R = 12/40 = 0.3 A P=VI = 12x1.2 = 14.4 W
26
A
1 =
3A, assuming equal resistance on the bulbs, what is the reading on A
3
?
1.5 A
3 A
1.5 V
3 V
27
V
4
= 12V, calculate V
2
15V
10V
12V
18V
