QUIZ 1 Practice 1. Coulombs 1.0 0.5 0 1 2 3 4 Seconds The graph above represents
ID: 2989654 • Letter: Q
Question
QUIZ 1 Practice
1.
Coulombs
1.0 0.5
0 1 2 3 4 Seconds The graph above represents charge. What is the current between 0 and 4 seconds?
(a) 2 Amps (b) -2.0 Amps (c) 0.25 Amps (d) -0.25 Amps
2 Suppose a 1 megawatt power plant can supply 1,000 homes. If a month has thirty 24-hour days, how many kilowatt hours does such a home use in a month?
(a) 720 KWHr (b) 1 KW (c) 1000 KWHr (d) 24,000 KWHr
3 An automotive battery charger can charge a car battery at a rate of 2 Amps. If an 80 amp-hour car battery is fully discharged, how long will it take this charger to fully charge the battery? (assume 100% efficiency)
(a) 40 Hours (b) 160 Hours (c) 80 Hours (d) 20 Hours
ia
if = -3A
A
F
+va - - vd= 8v
+
+ vf - id
ig= -7A
ib
D
B
E
ie=5A + vg=18v- ih
G
-vb+ + ve= 22v
ic= 1A -
C
H
-vc=-29v+
Use the circuit above to answer the questions below
-vh +
(d)5
(d) Noneofthese
(d) -4 amps
(d) -7 volts
(d) -29 watts
4 How many nodes are there? (a)2 (b) 3
5 Which components are in parallel?
(c)4
(c) D&E
(c) -24 amps
(c) -51 volts
(a) A,B&C
6 What is ih? (a) 4 amps
7 What is vb?. (a) +7 volts
(b) F,G&H
(b) 24 amps
(b) 51 volts
8 What is the power dissipated in component C?
(a) 34 mwatts (b) 29 watts (c) -34 mwatts
Explanation / Answer
1) (d) -0.25 Amps
2)(a) 720 KWHr <------- 24*30*1000 watt-hr.
3)(a) 40 Hours <--------- 0.5*80
4)(b) 3
5)(b) F,G&H
6)(c) -24 amps
7)(b) 51 volts
8)(b) 29 watts